Release automation (#890)

* ci: create release draft for tagged builds

* Apply suggestions from code review

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: sinu.eth <65924192+sinui0@users.noreply.github.com>

.github/workflows/ci.yml

@@ -373,3 +373,22 @@ jobs:
           tags: ${{ steps.meta-notary-server.outputs.tags }}
           labels: ${{ steps.meta-notary-server.outputs.labels }}
           file: ./crates/notary/server/notary-server.Dockerfile
+
+  create-release-draft:
+    name: Create Release Draft
+    needs: build_and_publish_notary_server_image
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    if: startsWith(github.ref, 'refs/tags/v') && contains(github.ref, '.')
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Create GitHub Release Draft
+        uses: softprops/action-gh-release@v2
+        with:
+          draft: true
+          tag_name: ${{ github.ref_name }}
+          prerelease: true
+          generate_release_notes: true