fix: bump release-please from 15.9.1 to 15.9.2 (#746)

Bumps [release-please](https://github.com/googleapis/release-please)
from 15.9.1 to 15.9.2.
<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>v15.9.2</h2>
<h2><a
href="https://github.com/googleapis/release-please/compare/v15.9.1...v15.9.2">15.9.2</a>
(2023-03-28)</h2>
<h3>Bug Fixes</h3>
<ul>
<li><strong>cargo-workspace:</strong> Find workspace modules on the
target branch (<a
href="https://redirect.github.com/googleapis/release-please/issues/1889">#1889</a>)
(<a
href="https://github.com/googleapis/release-please/commit/96479413fd5fe9d1c546d829e70bfaf99b36661a">9647941</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/v15.9.1...v15.9.2">15.9.2</a>
(2023-03-28)</h2>
<h3>Bug Fixes</h3>
<ul>
<li><strong>cargo-workspace:</strong> Find workspace modules on the
target branch (<a
href="https://redirect.github.com/googleapis/release-please/issues/1889">#1889</a>)
(<a
href="https://github.com/googleapis/release-please/commit/96479413fd5fe9d1c546d829e70bfaf99b36661a">9647941</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/googleapis/release-please/commit/af30ea6a99d8ae02038043467e7c6c900a15b50d"><code>af30ea6</code></a>
chore(main): release 15.9.2 (<a
href="https://redirect.github.com/googleapis/release-please/issues/1890">#1890</a>)</li>
<li><a
href="https://github.com/googleapis/release-please/commit/96479413fd5fe9d1c546d829e70bfaf99b36661a"><code>9647941</code></a>
fix(cargo-workspace): find workspace modules on the target branch (<a
href="https://redirect.github.com/googleapis/release-please/issues/1889">#1889</a>)</li>
<li><a
href="https://github.com/googleapis/release-please/commit/faa52d37259a7e85f145caeb20c4408520326b65"><code>faa52d3</code></a>
chore(deps): update dependency sinon to v15.0.3 (<a
href="https://redirect.github.com/googleapis/release-please/issues/1888">#1888</a>)</li>
<li><a
href="https://github.com/googleapis/release-please/commit/439290c63c5790d9161396fdba1daca4b8781e44"><code>439290c</code></a>
chore: store nodejs build artifacts in placer (<a
href="https://redirect.github.com/googleapis/release-please/issues/1882">#1882</a>)</li>
<li>See full diff in <a
href="https://github.com/googleapis/release-please/compare/v15.9.1...v15.9.2">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=release-please&package-manager=npm_and_yarn&previous-version=15.9.1&new-version=15.9.2)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after
your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge
and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating
it. You can achieve the same result by closing it manually
- `@dependabot ignore this major version` will close this PR and stop
Dependabot creating any more for this major version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop
Dependabot creating any more for this minor version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop
Dependabot creating any more for this dependency (unless you reopen the
PR or upgrade to it yourself)


</details>

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

Author: dependabot[bot]

package-lock.json

@@ -26,7 +26,7 @@
   "homepage": "https://github.com/bcoe/release-please-action#readme",
   "dependencies": {
     "@actions/core": "^1.10.0",
-    "release-please": "^15.9.1"
+    "release-please": "^15.9.2"
   },
   "devDependencies": {
     "@vercel/ncc": "^0.27.0",