Merge pull request #16 from meshtastic/dependabot/github_actions/docker/setup-buildx-action-4

Bump docker/setup-buildx-action from 3 to 4

Author: thebentern

.github/workflows/build-image.yml

@@ -57,7 +57,7 @@ jobs:
         uses: docker/setup-qemu-action@v3
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Sanitize platform string
         id: clean_plat