chore: fix repo name

Author: mahiarirani

.github/workflows/publish_ghcr.yaml

@@ -30,25 +30,28 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Extract version from tag
+      - name: Extract version from tag and set lowercase repo owner
         id: extract_version
         run: |
           REF_NAME=${GITHUB_REF#refs/tags/}
           VERSION=${REF_NAME#v}
+          REPO_OWNER=$(echo $GITHUB_REPOSITORY_OWNER | tr '[:upper:]' '[:lower:]')
           echo "VERSION=$VERSION" >> $GITHUB_ENV
           echo "version=$VERSION" >> $GITHUB_OUTPUT
+          echo "repo_owner=$REPO_OWNER" >> $GITHUB_OUTPUT
 
       - name: Build and push Docker image
         uses: docker/build-push-action@v4
         env:
           VERSION: ${{ steps.extract_version.outputs.version }}
+          REPO_OWNER: ${{ steps.extract_version.outputs.repo_owner }}
         with:
           context: .
           push: true
           platforms: linux/amd64,linux/arm64/v8
           tags: |
-            ghcr.io/${{ github.repository_owner.toLowerCase() }}/etherproxy:${{ env.VERSION }}
-            ghcr.io/${{ github.repository_owner.toLowerCase() }}/etherproxy:latest
+            ghcr.io/${{ env.REPO_OWNER }}/etherproxy:${{ env.VERSION }}
+            ghcr.io/${{ env.REPO_OWNER }}/etherproxy:latest
           labels: |
             org.opencontainers.image.version=${{ env.VERSION }}
             org.opencontainers.image.source=${{ github.server_url }}/${{ github.repository }}