Bump step-security/harden-runner from 2.19.1 to 2.19.3 (#1717)

Bumps
[step-security/harden-runner](https://github.com/step-security/harden-runner)
from 2.19.1 to 2.19.3.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/step-security/harden-runner/releases">step-security/harden-runner's
releases</a>.</em></p>
<blockquote>
<h2>v2.19.3</h2>
<h2>What's Changed</h2>
<ul>
<li>Default to audit mode when api-key missing with use-policy-store by
<a
href="https://github.com/varunsh-coder"><code>@​varunsh-coder</code></a>
in <a
href="https://redirect.github.com/step-security/harden-runner/pull/665">step-security/harden-runner#665</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/step-security/harden-runner/compare/v2.19.2...v2.19.3">https://github.com/step-security/harden-runner/compare/v2.19.2...v2.19.3</a></p>
<h2>v2.19.2</h2>
<h2>What's Changed</h2>
<ul>
<li>Update the Harden Runner agent for enterprise tier to use go 1.26
and fix minor bugs.</li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/step-security/harden-runner/compare/v2.19.1...v2.19.2">https://github.com/step-security/harden-runner/compare/v2.19.1...v2.19.2</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/step-security/harden-runner/commit/ab7a9404c0f3da075243ca237b5fac12c98deaa5"><code>ab7a940</code></a>
Merge pull request <a
href="https://redirect.github.com/step-security/harden-runner/issues/665">#665</a>
from step-security/fix/use-policy-store-default-audit</li>
<li><a
href="https://github.com/step-security/harden-runner/commit/ec41b783c27ed7f0db6855a6d9970abd4572858c"><code>ec41b78</code></a>
Default to audit mode when api-key missing with use-policy-store</li>
<li><a
href="https://github.com/step-security/harden-runner/commit/9ca718d3bf646d6534007c269a635b3e54cadf99"><code>9ca718d</code></a>
Merge pull request <a
href="https://redirect.github.com/step-security/harden-runner/issues/664">#664</a>
from step-security/update-agent-v1.8.5</li>
<li><a
href="https://github.com/step-security/harden-runner/commit/1dee3df8d29f4225c582eee2ddb6053ca616c0df"><code>1dee3df</code></a>
Update agent to v1.8.5</li>
<li>See full diff in <a
href="https://github.com/step-security/harden-runner/compare/a5ad31d6a139d249332a2605b85202e8c0b78450...ab7a9404c0f3da075243ca237b5fac12c98deaa5">compare
view</a></li>
</ul>
</details>
<br />


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.github/workflows/push_gem.yml

@@ -23,7 +23,7 @@ jobs:
 
     steps:
       - name: Harden Runner
-        uses: step-security/harden-runner@a5ad31d6a139d249332a2605b85202e8c0b78450 # v2.19.1
+        uses: step-security/harden-runner@ab7a9404c0f3da075243ca237b5fac12c98deaa5 # v2.19.3
         with:
           egress-policy: audit