Update action-gh-release to version 2 in the GitHub workflow

- Changed action-gh-release from v1 to v2 for uploading VSIX to release

Author: hawkeyexl

.github/workflows/test-publish.yaml

@@ -62,7 +62,7 @@ jobs:
 
       # Upload VSIX to release
       - name: Upload VSIX to Release
-        uses: softprops/action-gh-release@v1
+        uses: softprops/action-gh-release@v2
         with:
           files: "*.vsix"
           tag_name: ${{ github.event.release.tag_name }}