Bump step-security/harden-runner from 2.19.0 to 2.19.3

Bumps [step-security/harden-runner](https://github.com/step-security/harden-runner) from 2.19.0 to 2.19.3.
- [Release notes](https://github.com/step-security/harden-runner/releases)
- [Commits](step-security/harden-runner@8d3c67d...ab7a940)

---
updated-dependencies:
- dependency-name: step-security/harden-runner
  dependency-version: 2.19.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

.github/workflows/test.yml

@@ -10,7 +10,7 @@ jobs:
     permissions: { contents: read, packages: read, statuses: write }
     runs-on: ubuntu-latest
     steps:
-      - uses: step-security/harden-runner@8d3c67de8e2fe68ef647c8db1e6a09f647780f40 # v2.19.0
+      - uses: step-security/harden-runner@ab7a9404c0f3da075243ca237b5fac12c98deaa5 # v2.19.3
         with: { egress-policy: audit }
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with: { persist-credentials: false }