bump go version for verify target

Signed-off-by: Anik Bhattacharjee <[email protected]>

Author: anik120

.github/workflows/verify.yml

@@ -12,7 +12,7 @@ jobs:
       - uses: actions/checkout@v1
       - uses: actions/setup-go@v2
         with:
-          go-version: '~1.18'
+          go-version: '~1.19'
 
         # Note(tflannag): We need to explicitly setup the GOPATH as the generate-internal-groups.sh
         # codegen script still relies on $GOPATH being set and will return an error otherwise.