chore(deps): bump docker/setup-buildx-action from 2.6.0 to 2.7.0 (aws-powertools#2450)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/publish_v2_layer.yml

@@ -90,7 +90,7 @@ jobs:
         # NOTE: we need QEMU to build Layer against a different architecture (e.g., ARM)
       - name: Set up Docker Buildx
         id: builder
-        uses: docker/setup-buildx-action@6a58db7e0d21ca03e6c44877909e80e45217eed2 # v2.6.0
+        uses: docker/setup-buildx-action@ecf95283f03858871ff00b787d79c419715afc34 # v2.7.0
         with:
           install: true
           driver: docker