Enforce naming convention for browser based tests

This allows us to target browser based tests with the regex:

go test -v -race -count 1 -timeout 0 ./test/integration -run '/_Browser'

New tests that call browsertest.Open will automatically be forced to
follow this convention.

Signed-off-by: Monis Khan <mok@vmware.com>

test/integration/cli_test.go

@@ -170,7 +170,7 @@ func deserializeWhoAmIRequest(t *testing.T, data string, apiGroupSuffix string)
 	return obj.(*identityv1alpha1.WhoAmIRequest)
 }
 
-func TestCLILoginOIDC(t *testing.T) {
+func TestCLILoginOIDC_Browser(t *testing.T) {
 	env := testlib.IntegrationEnv(t)
 
 	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Minute)