Update docker/setup-buildx-action action to v4.2.0

Author: renovate-rancher[bot]

.github/workflows/head-builds.yml

@@ -35,7 +35,7 @@ jobs:
         run: bash ./.github/scripts/branch-tags.sh >> $GITHUB_OUTPUT
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@d7f5e7f509e45cec5c76c4d5afdd7de93d0b3df5 # v4.1.0
+        uses: docker/setup-buildx-action@bb05f3f5519dd87d3ba754cc423b652a5edd6d2c # v4.2.0
 
       - name: Login to GitHub Container Registry
         uses: docker/login-action@c99871dec2022cc055c062a10cc1a1310835ceb4 # v4.3.0