CI: Add Dependabot go workspace action (#96064)

.github/CODEOWNERS

@@ -741,6 +741,7 @@ embed.go @grafana/grafana-as-code
 /.github/workflows/i18n-crowdin-upload.yml @grafana/grafana-frontend-platform
 /.github/workflows/i18n-crowdin-download.yml @grafana/grafana-frontend-platform
 /.github/workflows/pr-go-workspace-check.yml @grafana/grafana-app-platform-squad
+/.github/workflows/pr-dependabot-update-go-workspace.yml @grafana/grafana-app-platform-squad
 /.github/workflows/pr-k8s-codegen-check.yml @grafana/grafana-app-platform-squad
 /.github/workflows/go_lint.yml @grafana/grafana-backend-services-squad
 /.github/workflows/trivy-scan.yml @grafana/grafana-backend-services-squad

.github/workflows/pr-dependabot-update-go-workspace.yml

@@ -0,0 +1,49 @@
+name: "Update Go Workspace for Dependabot PRs"
+on:
+  pull_request:
+    branches: [main]
+    paths:
+      - .github/workflows/pr-dependabot-update-go-workspace.yml
+      - go.mod
+      - go.sum
+      - go.work
+      - go.work.sum
+      - '**/go.mod'
+      - '**/go.sum'
+      - '**.go'
+permissions:
+  contents: write
+jobs:
+  update:
+    runs-on: "ubuntu-latest"
+    if: ${{ github.actor == 'dependabot[bot]' }}
+    continue-on-error: true
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+      with:
+        repository: ${{ github.event.pull_request.head.repo.full_name }}
+        ref: ${{ github.event.pull_request.head.ref }}
+
+    - name: Set go version
+      uses: actions/setup-go@v4
+      with:
+        go-version-file: go.mod
+
+    - name: Update workspace
+      run: make update-workspace
+
+    - name: Commit and push workspace changes
+      env:
+        BRANCH_NAME: ${{ github.head_ref || github.ref_name }} 
+      run: |
+        if ! git diff --exit-code --quiet; then
+          git config --local user.name "github-actions[bot]"
+          git config --local user.email "github-actions[bot]@users.noreply.github.com"
+          git config --local --add --bool push.autoSetupRemote true
+          echo "Committing and pushing workspace changes"
+          git remote
+          git branch -l
+          git commit -a -m "update workspace"
+          git push origin $BRANCH_NAME
+        fi

.github/workflows/pr-go-workspace-check.yml

@@ -4,6 +4,15 @@ on:
   workflow_dispatch:
   pull_request:
     branches: [main]
+    paths:
+      - .github/workflows/pr-go-workspace-check.yml
+      - go.mod
+      - go.sum
+      - go.work
+      - go.work.sum
+      - '**/go.mod'
+      - '**/go.sum'
+      - '**.go'
 
 jobs:
   check: