Use sep PAT for MCP

Author: ColinMcNeil

.github/workflows/mcp_images.yml

@@ -15,10 +15,11 @@ jobs:
       - name: Login to Docker Hub
         uses: docker/login-action@v3
         with:
-          username: ${{ secrets.DOCKERPUBLICBOT_USERNAME }}
-          password: ${{ secrets.DOCKERPUBLICBOT_WRITE_PAT }}
+          username: ${{ secrets.JIM_USERNAME }}
+          password: ${{ secrets.JIM_PAT }}
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
+
         with:
           driver: cloud
           endpoint: "mcp/cloud-ai-labs"