Bump docker/github-builder/.github/workflows/build.yml

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


Updates `docker/github-builder/.github/workflows/build.yml` from 1.5.0 to 1.6.0
- [Release notes](https://github.com/docker/github-builder/releases)
- [Commits](docker/github-builder@2497a7d...7d2a024)

---
updated-dependencies:
- dependency-name: docker/github-builder/.github/workflows/build.yml
  dependency-version: 1.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: github_action-dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/ftl-build.yml

@@ -47,7 +47,7 @@ jobs:
         run: echo "Exposing env vars for reusable workflow"
 
   build-and-test:
-    uses: docker/github-builder/.github/workflows/build.yml@2497a7d1e7d8683af4949c9d6d62012bc16ed59c #v1.5.0
+    uses: docker/github-builder/.github/workflows/build.yml@7d2a02426d4b989616ba5aaee4e879afd4134b0d #v1.6.0
     needs:
       - smoke-tests
     permissions:
@@ -70,7 +70,7 @@ jobs:
   build-and-push:
     if: needs.smoke-tests.outputs.DO_DEPLOY == 'true'
     needs:  [smoke-tests, build-and-test]
-    uses: docker/github-builder/.github/workflows/build.yml@2497a7d1e7d8683af4949c9d6d62012bc16ed59c #v1.5.0
+    uses: docker/github-builder/.github/workflows/build.yml@7d2a02426d4b989616ba5aaee4e879afd4134b0d #v1.6.0
     permissions:
       contents: read # same as global permissions
       id-token: write # for signing attestation(s) with GitHub OIDC Token