ci: run release drafter on pull requests

Author: rian-be

.github/workflows/publish-attested.yml

@@ -64,14 +64,17 @@ jobs:
         with:
           subject-path: dist/*.nupkg
 
-      - name: Create or update draft release
+      - name: Upload artifacts to release
+        if: ${{ inputs.version != '' }}
         env:
           GITHUB_TOKEN: ${{ github.token }}
           REPOSITORY: ${{ github.repository }}
           DIST_DIR: dist
-          FIND_DRAFT: "true"
-          ENSURE_DRAFT: "true"
-          FAIL_MESSAGE: "No draft release found. Release Drafter must create the draft before artifacts can be uploaded."
+          RELEASE_TAG: ${{ inputs.version }}
           ASSET_PATTERNS: |
             *
         run: python3 -m scripts.releases.upload_release_assets
+
+      - name: Skip release upload
+        if: ${{ inputs.version == '' }}
+        run: echo "No version supplied; attested artifacts were produced without release upload."

.github/workflows/release-drafter.yml

@@ -1,6 +1,8 @@
 name: Release Drafter
 
 on:
+  pull_request:
+    types: [opened, reopened, synchronize, closed]
   workflow_dispatch:
     inputs:
       version:
@@ -34,6 +36,7 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
   publish-attested:
+    if: ${{ github.event_name != 'pull_request' || github.event.pull_request.merged }}
     needs: update-release-draft
     uses: ./.github/workflows/publish-attested.yml
     with: