build(deps): Bump google.golang.org/grpc from 1.37.1 to 1.38.0 (#6483)

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.37.1 to 1.38.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/grpc/grpc-go/releases">google.golang.org/grpc's releases</a>.</em></p>
<blockquote>
<h2>Release 1.38.0</h2>
<h1>API Changes</h1>
<ul>
<li>reflection: accept interface instead of grpc.Server struct in Register() (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4340">#4340</a>)</li>
<li>resolver: add error return value from ClientConn.UpdateState (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4270">#4270</a>)</li>
</ul>
<h1>Behavior Changes</h1>
<ul>
<li>client: do not poll name resolver when errors or bad updates are reported (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4270">#4270</a>)</li>
<li>transport: InTapHandle may return RPC status errors; no longer RST_STREAMs (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4365">#4365</a>)</li>
</ul>
<h1>New Features</h1>
<ul>
<li>client: propagate connection error causes to RPC status (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4311">#4311</a>, <a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4316">#4316</a>)</li>
<li>xds: support inline RDS resource from LDS response (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4299">#4299</a>)</li>
<li>xds: server side support is now experimentally available</li>
<li>server: add ForceServerCodec() to set a custom encoding.Codec on the server (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4205">#4205</a>)
<ul>
<li>Special Thanks: <a href="https://github.com/ash2k"><code>@​ash2k</code></a></li>
</ul>
</li>
</ul>
<h1>Performance Improvements</h1>
<ul>
<li>metadata: reduce memory footprint in FromOutgoingContext (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4360">#4360</a>)
<ul>
<li>Special Thanks: <a href="https://github.com/irfansharif"><code>@​irfansharif</code></a></li>
</ul>
</li>
</ul>
<h1>Bug Fixes</h1>
<ul>
<li>xds/balancergroup: fix rare memory leak after closing ClientConn (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4308">#4308</a>)</li>
</ul>
<h1>Documentation</h1>
<ul>
<li>examples: update xds examples for PSM security (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4256">#4256</a>)</li>
<li>grpc: improve docs on StreamDesc (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4397">#4397</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/grpc/grpc-go/commit/0257c8657362b76f24e7a8cfb61df48d4cb735d3"><code>0257c86</code></a> Change version to 1.38.0 (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4418">#4418</a>)</li>
<li><a href="https://github.com/grpc/grpc-go/commit/ce3e5ec0d8afb007c87788af5c41cf7886db89c2"><code>ce3e5ec</code></a> v1.38.x: backport (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4453">#4453</a>)</li>
<li><a href="https://github.com/grpc/grpc-go/commit/5f95ad62331add45bbf5ee167b67cadc72e1d322"><code>5f95ad6</code></a> xds: workaround to deflake xds e2e tests (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4413">#4413</a>)</li>
<li><a href="https://github.com/grpc/grpc-go/commit/b1940e15f6778067675e2192d8947608e8a20e32"><code>b1940e1</code></a> xds: register resources at the mgmt server before requesting them (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4406">#4406</a>)</li>
<li><a href="https://github.com/grpc/grpc-go/commit/98c895f7e06adc82ad030c4f90bcada672f523a2"><code>98c895f</code></a> cleanup: use testutils.MarshalAny in more places (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4404">#4404</a>)</li>
<li><a href="https://github.com/grpc/grpc-go/commit/12a377b1e4c9f1960bd25f47b9156d9dbd732ed0"><code>12a377b</code></a> xds: nack route configuration with regexes that don't compile (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4388">#4388</a>)</li>
<li><a href="https://github.com/grpc/grpc-go/commit/c15291b0f5929ab8cf659269a11e8aa79cb71788"><code>c15291b</code></a> client: initialize safe config selector when creating ClientConn (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4398">#4398</a>)</li>
<li><a href="https://github.com/grpc/grpc-go/commit/328b1d171a65d7e855bcd7bb5cb1f973c7e6f5d2"><code>328b1d1</code></a> transport: allow InTapHandle to return status errors (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4365">#4365</a>)</li>
<li><a href="https://github.com/grpc/grpc-go/commit/aff517ba8a8ded7306801c3b95f1f7f480c1268b"><code>aff517b</code></a> xds: make e2e tests use a single management server instance (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4399">#4399</a>)</li>
<li><a href="https://github.com/grpc/grpc-go/commit/0439465fe2b4020767d9aab1bc3055e492c14089"><code>0439465</code></a> xds_resolver: fix flaky Test/XDSResolverDelayedOnCommitted (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4393">#4393</a>)</li>
<li>Additional commits viewable in <a href="https://github.com/grpc/grpc-go/compare/v1.37.1...v1.38.0">compare view</a></li>
</ul>
</details>
<br />


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</details>

go.mod

@@ -35,5 +35,5 @@ require (
 	github.com/tendermint/tm-db v0.6.4
 	golang.org/x/crypto v0.0.0-20201117144127-c1f2f97bffc9
 	golang.org/x/net v0.0.0-20201021035429-f5854403a974
-	google.golang.org/grpc v1.37.1
+	google.golang.org/grpc v1.38.0
 )

go.sum

@@ -751,8 +751,8 @@ google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTp
 google.golang.org/grpc v1.33.2/go.mod h1:JMHMWHQWaTccqQQlmk3MJZS+GWXOdAesneDmEnv2fbc=
 google.golang.org/grpc v1.35.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
 google.golang.org/grpc v1.37.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
-google.golang.org/grpc v1.37.1 h1:ARnQJNWxGyYJpdf/JXscNlQr/uv607ZPU9Z7ogHi+iI=
-google.golang.org/grpc v1.37.1/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
+google.golang.org/grpc v1.38.0 h1:/9BgsAsa5nWe26HqOlvlgJnqBuktYOLCgjCPqsa56W0=
+google.golang.org/grpc v1.38.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=