Merge pull request #47 from observatorium/dependabot/github_actions/docker/setup-buildx-action-3

Bump docker/setup-buildx-action from 2 to 3

Author: philipgough

.github/workflows/container.yaml

@@ -27,7 +27,7 @@ jobs:
 
       - name: Set up Docker Buildx
         id: buildx
-        uses: docker/setup-buildx-action@v2
+        uses: docker/setup-buildx-action@v3
 
       - name: Cache for Docker's buildx
         uses: actions/cache@v3