ci(deps): bump step-security/harden-runner from 2.19.1 to 2.19.3 (#32)

Bumps [step-security/harden-runner](https://github.com/step-security/harden-runner) from 2.19.1 to 2.19.3.
- [Release notes](https://github.com/step-security/harden-runner/releases)
- [Commits](step-security/harden-runner@a5ad31d...ab7a940)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/build.yml

@@ -63,7 +63,7 @@ jobs:
 
     steps:
     - name: Harden the runner (Audit all outbound calls)
-      uses: step-security/harden-runner@a5ad31d6a139d249332a2605b85202e8c0b78450 # v2.19.1
+      uses: step-security/harden-runner@ab7a9404c0f3da075243ca237b5fac12c98deaa5 # v2.19.3
       with:
         egress-policy: audit
 
@@ -175,7 +175,7 @@ jobs:
 
     steps:
     - name: Harden the runner (Audit all outbound calls)
-      uses: step-security/harden-runner@a5ad31d6a139d249332a2605b85202e8c0b78450 # v2.19.1
+      uses: step-security/harden-runner@ab7a9404c0f3da075243ca237b5fac12c98deaa5 # v2.19.3
       with:
         egress-policy: audit