chore(deps): update docker/setup-buildx-action action to v4 (#248)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/build.yaml

@@ -75,7 +75,7 @@ jobs:
         uses: docker/setup-qemu-action@ce360397dd3f832beb865e1373c09c0e9f86d70a # v4
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3
+        uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4
 
       - name: Build Docker image
         uses: docker/build-push-action@d08e5c354a6adb9ed34480a06d141179aa583294 # v7

.github/workflows/release-please.yaml

@@ -72,7 +72,7 @@ jobs:
         uses: docker/setup-qemu-action@ce360397dd3f832beb865e1373c09c0e9f86d70a # v4
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3
+        uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4
 
       - name: Login to Docker Hub
         uses: docker/login-action@b45d80f862d83dbcd57f89517bcf500b2ab88fb2 # v4