ci(actions): Generate and upload sample sheet as artifact

Author: alerque

.github/workflows/fontship.yml

@@ -28,14 +28,24 @@ jobs:
           path: ${{ steps.fontship.outputs.DISTDIR }}.zip
       - name: FontProof
         id: fontproof
-        uses: docker://siletypesetter/fontproof:latest
+        uses: sile-typesetter/fontproof@v2
         with:
-          args: proofs/waterfalls.sil
+          args: documentation/waterfalls.sil
       - name: Upload artifacts
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: waterfalls
-          path: proofs/waterfalls.pdf
+          path: documentation/waterfalls.pdf
+      - name: SILE
+        id: sile
+        uses: sile-typesetter/sile@v0
+        with:
+          args: documentation/sample.sil
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: samples
+          path: documentation/sample.pdf
       - name: Release
         if: startsWith(github.ref, 'refs/tags/v')
         uses: softprops/action-gh-release@v1