Bump docker/github-builder/.github/workflows/build.yml in the ci group (#258)

Bumps the ci group with 1 update: [docker/github-builder/.github/workflows/build.yml](https://github.com/docker/github-builder).


Updates `docker/github-builder/.github/workflows/build.yml` from 1.11.0 to 1.12.0
- [Release notes](https://github.com/docker/github-builder/releases)
- [Commits](docker/github-builder@70ac3fc...5f637c8)

---
updated-dependencies:
- dependency-name: docker/github-builder/.github/workflows/build.yml
  dependency-version: 1.12.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: ci
...

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Author: dependabot[bot]

.github/workflows/open-pr.yml

@@ -80,7 +80,7 @@ jobs:
           write-comment: true
           github-token: ${{ secrets.GITHUB_TOKEN }}
   multi-arch-build:
-    uses: docker/github-builder/.github/workflows/build.yml@70ac3fc303efa83d2b94905e6ab78bb83cbdc2ae # v1.11.0
+    uses: docker/github-builder/.github/workflows/build.yml@5f637c833aa76bc99372a1dc9a6f8bcd8056fb85 # v1.12.0
     with:
       output: image
       push: false

.github/workflows/push-tag.yml

@@ -7,7 +7,7 @@ permissions:
   contents: read # to fetch the repository content
 jobs:
   build-push:
-    uses: docker/github-builder/.github/workflows/build.yml@70ac3fc303efa83d2b94905e6ab78bb83cbdc2ae # v1.11.0
+    uses: docker/github-builder/.github/workflows/build.yml@5f637c833aa76bc99372a1dc9a6f8bcd8056fb85 # v1.12.0
     permissions:
       id-token: write # to sign attestation(s) with GitHub OIDC Token
       packages: write # to push container image to ghcr