Add extra step to gem release workflow to get tag name

Author: egiurleo

.github/workflows/release.yml

@@ -1,4 +1,4 @@
-name: Release
+name: Release gem on RubyGems.org
 
 on:
   workflow_dispatch:
@@ -29,6 +29,12 @@ jobs:
       - name: Release gem on RubyGems.org
         uses: rubygems/release-gem@1c162a739e8b4cb21a676e97b087e8268d8fc40b # v1.1.2
 
+      - name: Get latest tag
+        id: get_tag
+        run: |
+          TAG=$(git describe --tags --abbrev=0)
+          echo "tag=$TAG" >> $GITHUB_OUTPUT
+
       - name: Create GitHub release
         uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         with:
@@ -37,7 +43,7 @@ jobs:
             await github.rest.repos.createRelease({
               owner: context.repo.owner,
               repo: context.repo.repo,
-              tag_name: "${{ github.ref }}",
-              name: "${{ github.ref_name }}",
+              tag_name: "refs/tags/${{ steps.get_tag.outputs.tag }}",
+              name: "${{ steps.get_tag.outputs.tag }}",
               generate_release_notes: true
             })