Merge pull request #806 from Synthetixio/dependabot/github_actions/do…

…cker/setup-buildx-action-2.9.1

Bump docker/setup-buildx-action from 2.8.0 to 2.9.1

.github/workflows/e2e_docker.yml

@@ -29,7 +29,7 @@ jobs:
         uses: docker/setup-qemu-action@2b82ce82d56a2a04d2637cd93a637ae1b359c0a7 # pin@v1
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@16c0bc4a6e6ada2cfd8afd41d22d95379cf7c32a # pin@v1
+        uses: docker/setup-buildx-action@4c0219f9ac95b02789c1075625400b2acbff50b1 # pin@v1
 
       - name: Cache Docker layers
         uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # pin@v2