Add pattern metadata workflow

Author: mbaldessari

.github/workflows/update-metadata.yml

@@ -0,0 +1,23 @@
+# This job requires a secret called DOCS_TOKEN which should be a PAT token
+# that has the permissions described in:
+# validatedpatterns/docs/.github/workflows/metadata-docs.yml@main
+---
+name: Update docs pattern metadata
+
+on:
+  push:
+    paths:
+      - "pattern-metadata.yaml"
+      - ".github/workflows/update-metadata.yml"
+
+jobs:
+  update-metadata:
+    uses: validatedpatterns/docs/.github/workflows/metadata-docs.yml@main
+    permissions: # Workflow-level permissions
+      contents: read  # Required for "read-all"
+      packages: write # Allows writing to packages
+      id-token: write # Allows creating OpenID Connect (OIDC) tokens
+    secrets: inherit
+    # For testing you can point to a different branch in the docs repository
+    # with:
+    #  DOCS_BRANCH: "main"