Update WebGSM-Docker.yml

Author: LoadingStill

.github/workflows/WebGSM-Docker.yml

@@ -1,4 +1,4 @@
-name: WebGSM-Docker.yml # Build and Publish
+name: WebGSM-Docker # Build and Publish
 
 on:
   push:
@@ -17,6 +17,9 @@ jobs:
       - name: Set up Docker
         uses: docker/setup-buildx-action@v2
 
+      - name: Set lowercase repository owner
+        run: echo "REPOSITORY_OWNER=$(echo ${{ github.repository_owner }} | tr '[:upper:]' '[:lower:]')" >> $GITHUB_ENV
+
       - name: Log in to GitHub Container Registry
         uses: docker/login-action@v2
         with:
@@ -30,6 +33,5 @@ jobs:
           context: .
           push: true
           tags: |
-            ghcr.io/${{ github.repository_owner | toLower() }}/webgsm:latest
-            ghcr.io/${{ github.repository_owner | toLower() }}/webgsm:${{ github.run_number }}
-
+            ghcr.io/${{ env.REPOSITORY_OWNER }}/webgsm:latest
+            ghcr.io/${{ env.REPOSITORY_OWNER }}/webgsm:${{ github.run_number }}