Update dotnet.yml

.github/workflows/dotnet.yml

@@ -26,13 +26,16 @@ jobs:
     - name: Publish
       run: dotnet publish ./Bot/Lunaris2.csproj --configuration Release --output ./out
 
+    - name: Get the tag name
+      id: get_tag
+      run: echo "::set-output name=tag::${GITHUB_REF#refs/tags/}"
     - name: Create Release
       id: create_release
       uses: actions/create-release@v1
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # This token is provided by Actions, you do not need to create your own token
       with:
-        tag_name: ${{ github.ref }}
+        tag_name: ${{ steps.get_tag.outputs.tag }}
         release_name: Release ${{ github.ref }}
         draft: false
         prerelease: false