build(deps): bump step-security/harden-runner from 2.12.0 to 2.12.2

Bumps [step-security/harden-runner](https://github.com/step-security/harden-runner) from 2.12.0 to 2.12.2.
- [Release notes](https://github.com/step-security/harden-runner/releases)
- [Commits](step-security/harden-runner@v2.12.0...6c439dc)

---
updated-dependencies:
- dependency-name: step-security/harden-runner
  dependency-version: 2.12.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

.github/workflows/docker.yml

@@ -18,7 +18,7 @@ jobs:
         if: startsWith(github.event.inputs.release_tag, 'v')
         steps:
         - name: Harden the runner (Audit all outbound calls)
-          uses: step-security/harden-runner@0634a2670c59f64b4a01f0f96f84700a4088b9f0 # v2.12.0
+          uses: step-security/harden-runner@6c439dc8bdf85cadbbce9ed30d1c7b959517bc49 # v2.12.2
           with:
             egress-policy: audit