use comment artifact action

Author: PicoCentauri

.github/workflows/build-wheels.yml

@@ -330,6 +330,7 @@ jobs:
     runs-on: ubuntu-22.04
     permissions:
       contents: write
+      pull-requests: write
     steps:
       - name: Download featomic wheels
         uses: actions/download-artifact@v4
@@ -359,6 +360,12 @@ jobs:
             wheels/*
             wheels/cxx/*
 
+      - name: Comment with download link
+        uses: PicoCentauri/comment-artifact@v1
+        with:
+          name: wheels
+          description: ⚙️ [Download Python wheels for this pull-request (you can install these with pip)
+
       - name: upload to GitHub release (featomic)
         if: startsWith(github.ref, 'refs/tags/featomic-v')
         uses: softprops/action-gh-release@v2

.github/workflows/comment-download.yml

@@ -16,6 +16,7 @@ jobs:
     runs-on: ubuntu-22.04
     permissions:
       contents: write
+      pull-requests: write
     steps:
       - name: free disk space
         run: sudo rm -rf /usr/share/dotnet /usr/local/lib/android || true
@@ -50,6 +51,12 @@ jobs:
           path: docs/build/html/*
           overwrite: true  # only keep the latest version of the documentation
 
+      - name: Comment with download link
+        uses: PicoCentauri/comment-artifact@v1
+        with:
+          name: docs
+          description: 📚 Download documentation for this pull-request
+
       - name: put documentation in the website
         run: |
           git clone https://github.com/$GITHUB_REPOSITORY --branch gh-pages gh-pages