skip changelog on tags

.github/workflows/main.yml

@@ -101,6 +101,8 @@ jobs:
 
   generate-changelog:
     name: "📢 Run towncrier for changelog"
+    # skip for builds of git tags
+    if: "!startsWith(github.ref, 'refs/tags/')"
     runs-on: ubuntu-latest
     steps:
       - name: "📥 Source checkout"
@@ -138,6 +140,7 @@ jobs:
           npm i
           npm run get-proposals
       - name: "📥 Download generated changelog"
+        if: "needs.generate-changelog.result == 'success'"
         uses: actions/download-artifact@v3
         with:
           name: changelog-artifact