fix: bump release-please from 15.12.0 to 15.13.0 (#813)

Bumps [release-please](https://github.com/googleapis/release-please)
from 15.12.0 to 15.13.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/googleapis/release-please/releases">release-please's
releases</a>.</em></p>
<blockquote>
<h2>v15.13.0</h2>
<h2><a
href="https://github.com/googleapis/release-please/compare/v15.12.0...v15.13.0">15.13.0</a>
(2023-08-18)</h2>
<h3>Features</h3>
<ul>
<li>Adds metadata versioning for terraform modules (<a
href="https://redirect.github.com/googleapis/release-please/issues/2041">#2041</a>)
(<a
href="https://github.com/googleapis/release-please/commit/49b33c73b2571699ad8362f8b6b934154a6ce375">49b33c7</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/googleapis/release-please/blob/main/CHANGELOG.md">release-please's
changelog</a>.</em></p>
<blockquote>
<h2><a
href="https://github.com/googleapis/release-please/compare/v15.12.0...v15.13.0">15.13.0</a>
(2023-08-18)</h2>
<h3>Features</h3>
<ul>
<li>Adds metadata versioning for terraform modules (<a
href="https://redirect.github.com/googleapis/release-please/issues/2041">#2041</a>)
(<a
href="https://github.com/googleapis/release-please/commit/49b33c73b2571699ad8362f8b6b934154a6ce375">49b33c7</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/googleapis/release-please/commit/2e28edfbe237f042e679621f89669f969f0c6a12"><code>2e28edf</code></a>
chore(main): release 15.13.0 (<a
href="https://redirect.github.com/googleapis/release-please/issues/2049">#2049</a>)</li>
<li><a
href="https://github.com/googleapis/release-please/commit/49b33c73b2571699ad8362f8b6b934154a6ce375"><code>49b33c7</code></a>
feat: adds metadata versioning for terraform modules (<a
href="https://redirect.github.com/googleapis/release-please/issues/2041">#2041</a>)</li>
<li><a
href="https://github.com/googleapis/release-please/commit/b8da322f8e13f98476fcb8d1e4584cfa3ea53ee0"><code>b8da322</code></a>
chore(deps): upgrade dependencies for Node.js images (<a
href="https://redirect.github.com/googleapis/release-please/issues/2033">#2033</a>)</li>
<li><a
href="https://github.com/googleapis/release-please/commit/adb394346539e792131aa320a0f5a635b74509bc"><code>adb3943</code></a>
build(deps): bump word-wrap from 1.2.3 to 1.2.4 (<a
href="https://redirect.github.com/googleapis/release-please/issues/2021">#2021</a>)</li>
<li><a
href="https://github.com/googleapis/release-please/commit/8ea20e29aed278271684351f3cc5a8607c5c1824"><code>8ea20e2</code></a>
docs(manifest-releaser): fix typos (<a
href="https://redirect.github.com/googleapis/release-please/issues/2013">#2013</a>)</li>
<li>See full diff in <a
href="https://github.com/googleapis/release-please/compare/v15.12.0...v15.13.0">compare
view</a></li>
</ul>
</details>
<br />


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package.json

@@ -26,7 +26,7 @@
   "homepage": "https://github.com/bcoe/release-please-action#readme",
   "dependencies": {
     "@actions/core": "^1.10.0",
-    "release-please": "^15.12.0"
+    "release-please": "^15.13.0"
   },
   "devDependencies": {
     "@vercel/ncc": "^0.27.0",