Add govulncheck to Go Tests workflow (#28226)

* Add govulncheck to Go Tests workflow

* Add manual trigger to go tests

* Broaden govulncheck

.github/workflows/go_tests.yml

@@ -29,6 +29,7 @@ on:
     branches: ['master', 'release-*']
     tags: ['v*']
     paths: ['sdks/go/pkg/**', 'sdks/go.mod', 'sdks/go.sum', 'sdks/go/container/*', 'sdks/java/container/*', 'sdks/python/container/*', 'sdks/typescript/container/*']
+  workflow_dispatch:
 # This allows a subsequently queued workflow run to interrupt previous runs
 concurrency:
   group: '${{ github.workflow }} @ ${{ github.event.issue.number || github.event.pull_request.head.label || github.sha || github.head_ref || github.ref }}-${{ github.event.schedule || github.event.comment.body || github.event.sender.login}}'
@@ -65,3 +66,8 @@ jobs:
           go install "honnef.co/go/tools/cmd/staticcheck@2023.1.3"
           cd sdks/go/pkg/beam
           $(go env GOPATH)/bin/staticcheck ./...
+      - name: Run govulncheck
+        run: |
+          go install golang.org/x/vuln/cmd/govulncheck@latest
+          cd sdks
+          $(go env GOPATH)/bin/govulncheck ./...