Bump docker/setup-buildx-action from 3 to 4 (#4120)

Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from 3 to 4.
- [Release notes](https://github.com/docker/setup-buildx-action/releases)
- [Commits](docker/setup-buildx-action@v3...v4)

---
updated-dependencies:
- dependency-name: docker/setup-buildx-action
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/docker-dev-test-env.yml

@@ -63,7 +63,7 @@ jobs:
           echo "TAG=${{ env.DH_PREFIX }}/${{ matrix.variant }}:${USER_INPUT:-current}-${{ matrix.mpi }}-${{ env.ARCH_TAG }}" >> $GITHUB_ENV
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Login to Docker Hub
         uses: docker/login-action@v4

.github/workflows/docker-end-user.yml

@@ -127,7 +127,7 @@ jobs:
           echo '{ "cffi_extra_compile_args" : ["-O2"] } ' > dolfinx/docker/dolfinx_jit_options.json
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Build dolfinx-onbuild
         uses: docker/build-push-action@v7

.github/workflows/docker-update-stable.yml

@@ -27,7 +27,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Login to Docker Hub
         uses: docker/login-action@v4