chore: publish artifacthub repo to oci

Author: viceice

.github/workflows/artifacthub.yaml

@@ -0,0 +1,32 @@
+name: artifacthub repo metadata
+
+on:
+  push:
+
+concurrency:
+  group: artifacthub
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+  packages: write
+
+jobs:
+  artifacthub:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+
+      - uses: oras-project/setup-oras@8d34698a59f5ffe24821f0b48ab62a3de8b64b20 # v1.2.3
+
+      - name: Login to GitHub Container Registry
+        run: |
+          echo ${{ secrets.GITHUB_TOKEN }} | oras login -u ${{ github.actor }} --password-stdin ghcr.io
+
+      - name: artifacthub repo meta to GHCR
+        run: |
+          oras push \
+            ghcr.io/${{ github.repository_owner }}/charts/renovate:artifacthub.io \
+            --config /dev/null:application/vnd.cncf.artifacthub.config.v1+yaml \
+            artifacthub-repo.yml:application/vnd.cncf.artifacthub.repository-metadata.layer.v1.yaml