Try fix

.gitea/workflows/docker-build.yaml

@@ -24,14 +24,15 @@ jobs:
 
       - name: Build and tag Docker image
         run: |
-          cd "$GITHUB_WORKSPACE"
           COMMIT_HASH="${GITHUB_SHA::7}"  # short SHA
+          REGISTRY="${GITHUB_SERVER_URL#https://}"
           IMAGE="$REGISTRY/$GITHUB_REPOSITORY/duino-coin"
           echo "Building Docker image with tags: latest and $COMMIT_HASH"
           docker build -t "$IMAGE:latest" -t "$IMAGE:$COMMIT_HASH" .
 
       - name: Push Docker image
         run: |
+          REGISTRY="${GITHUB_SERVER_URL#https://}"
           IMAGE="$REGISTRY/$GITHUB_REPOSITORY/duino-coin"
           docker push "$IMAGE:latest"
           docker push "$IMAGE:$COMMIT_HASH"