Bump Golang version to v1.19.8.

Signed-off-by: Xun Jiang <blackpiglet@gmail.com>

.github/workflows/crds-verify-kind.yaml

@@ -14,7 +14,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.18.10
+          go-version: 1.19.8
         id: go
       # Look for a CLI that's made for this PR
       - name: Fetch built CLI

.github/workflows/e2e-test-kind.yaml

@@ -14,7 +14,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.18.10
+          go-version: 1.19.8
         id: go
       # Look for a CLI that's made for this PR
       - name: Fetch built CLI
@@ -71,7 +71,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.18.10
+          go-version: 1.19.8
         id: go
       - name: Check out the code
         uses: actions/checkout@v2

.github/workflows/pr-ci-check.yml

@@ -8,7 +8,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.18.10
+          go-version: 1.19.8
         id: go
       - name: Check out the code
         uses: actions/checkout@v2

.github/workflows/push.yml

@@ -18,7 +18,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v2
       with:
-        go-version: 1.18.10
+        go-version: 1.19.8
       id: go
 
     - name: Check out code into the Go module directory