chore(deps): Update docker/setup-buildx-action action to v4 (#257)

Co-authored-by: cloudquery-ci[bot] <271027272+cloudquery-ci[bot]@users.noreply.github.com>

Author: cloudquery-ci[bot]

.github/workflows/unittests.yml

@@ -17,7 +17,7 @@ jobs:
         uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
       - # Required for the package command tests to work
         name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3
+        uses: docker/setup-buildx-action@d7f5e7f509e45cec5c76c4d5afdd7de93d0b3df5 # v4
       - name: Install uv
         uses: astral-sh/setup-uv@cec208311dfd045dd5311c1add060b2062131d57 # v8
         with: