fix: rename docker file

Author: abhirajranjan

.github/workflows/create_release.yml

@@ -9,24 +9,37 @@ jobs:
     runs-on: ubuntu-latest
     permissions:
       packages: write
-    
+
     steps:
       - uses: actions/checkout@v4
-      
+
       - name: Get JSign version
         id: version
         run: |
           JSIGN_VERSION=$(curl -s https://api.github.com/repos/ebourg/jsign/releases/latest | grep "tag_name" | cut -d '"' -f 4 | sed 's/^v//')
+          if [[ -z "$JSIGN_VERSION" ]]; then
+            echo "::error::Could not determine JSign version from GitHub API."
+            exit 1
+          fi
           echo "JSIGN_VERSION=$JSIGN_VERSION" >> $GITHUB_ENV
           echo "version=$JSIGN_VERSION" >> $GITHUB_OUTPUT
-      
+          echo "Detected JSign version: $JSIGN_VERSION" 
+
+      - name: Verify Version Output
+        run: |
+          if [[ -z "${{ steps.version.outputs.version }}" ]]; then
+            echo "::error::JSign version output is empty!"
+            exit 1
+          fi
+          echo "Verified JSign version output: ${{ steps.version.outputs.version }}"
+
       - name: Docker login
         uses: docker/login-action@v3
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
-      
+
       - name: Build and push
         uses: docker/build-push-action@v5
         with: