add on push action markdown index autobump

.github/workflows/push-test-infra-markdown-index-autobump.yml

@@ -0,0 +1,62 @@
+name: push-test-infra-markdown-index-autobump
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - '**/*.md'
+
+env:
+  AUTOBUMP_CONFIG_PATH: configs/autobump-config/test-infra-markdown-index-autobump-config.yaml
+
+jobs:
+  autobump:
+    runs-on: ubuntu-latest
+    permissions:
+      id-token: write
+      contents: read
+    concurrency:
+      group: post-test-infra-markdown-index-autobump
+      cancel-in-progress: false
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup git config
+        run: |
+          GIT_USERNAME=$(grep "gitName" ${{ env.AUTOBUMP_CONFIG_PATH }} | cut -d '"' -f 2)
+          GIT_EMAIL=$(grep "gitEmail" ${{ env.AUTOBUMP_CONFIG_PATH }} | cut -d '"' -f 2)
+          git config user.name "$GIT_USERNAME"
+          git config user.email "$GIT_EMAIL"
+
+          git config --unset-all http.https://github.com/.extraheader
+
+      - name: Authenticate in GCP
+        id: 'auth'
+        uses: 'google-github-actions/auth@v2'
+        with:
+          project_id: ${{ vars.GCP_KYMA_PROJECT_PROJECT_ID }}
+          workload_identity_provider: ${{ vars.GH_COM_KYMA_PROJECT_GCP_WORKLOAD_IDENTITY_FEDERATION_PROVIDER }}
+
+      - name: Get kyma bot token from Secret Manager
+        id: 'secrets'
+        uses: 'google-github-actions/get-secretmanager-secrets@v2'
+        with:
+          secrets: |-
+            kyma-autobump-token:${{ vars.GCP_KYMA_PROJECT_PROJECT_ID }}/${{ vars.KYMA_AUTOBUMP_BOT_GITHUB_SECRET_NAME }}
+
+      - name: Store Github Token for autobumper
+        run: |
+          echo "${{ steps.secrets.outputs.kyma-autobump-token }}" > ~/token
+
+      - name: Run markdown index autobump
+        run: |
+          docker run --rm \
+            -v ~/token:/etc/github/token:ro \
+            -v ${{ github.workspace }}:/github/workspace \
+            --workdir /github/workspace \
+            --user $UID \
+            europe-docker.pkg.dev/kyma-project/prod/markdown-index:v20241007-aa6bbc21 \
+            --config=${{ env.AUTOBUMP_CONFIG_PATH }} \
+            --labels-override=kind/chore,area/documentation