Merge pull request #1137 from modelcontextprotocol/dependabot/github_actions/docker/login-action-4

chore(deps): bump docker/login-action from 3 to 4

Author: cliffhall

.github/workflows/main.yml

@@ -80,7 +80,7 @@ jobs:
       - uses: actions/checkout@v6
 
       - name: Log in to the Container registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.actor }}