Update softprops/action-gh-release action to v2

Author: renovate[bot]

.github/workflows/ci-workflow.yml

@@ -31,6 +31,6 @@ jobs:
         run: ls -lh && cat metadata.txt
       - name: Release
         if: startsWith(github.ref, 'refs/tags/')
-        uses: softprops/action-gh-release@v1
+        uses: softprops/action-gh-release@v2
         with:
           files: questions_${{ env.TAG }}.epub