Bump docker/setup-buildx-action from 3.7.1 to 3.12.0

Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from 3.7.1 to 3.12.0.
- [Release notes](https://github.com/docker/setup-buildx-action/releases)
- [Commits](docker/setup-buildx-action@c47758b...8d2750c)

---
updated-dependencies:
- dependency-name: docker/setup-buildx-action
  dependency-version: 3.12.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci.js.yml

@@ -51,7 +51,7 @@ jobs:
         run: bin/test.sh
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@c47758b77c9736f4b2ef4073d4d51994fabfe349
+        uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f
         with:
           install: true
 

.github/workflows/pr.ci.js.yml

@@ -53,7 +53,7 @@ jobs:
         run: bin/test.sh
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@c47758b77c9736f4b2ef4073d4d51994fabfe349
+        uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f
         with:
           install: true