fix: bump release-please from 16.3.1 to 16.4.0 (#897)

Bumps [release-please](https://github.com/googleapis/release-please)
from 16.3.1 to 16.4.0.
<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>v16.4.0</h2>
<h2><a
href="https://github.com/googleapis/release-please/compare/v16.3.1...v16.4.0">16.4.0</a>
(2023-12-05)</h2>
<h3>Features</h3>
<ul>
<li><strong>types:</strong> Export types exposed by Manifest for use
downstream (<a
href="https://github.com/googleapis/release-please/issues/2147">#2147</a>)
(<a
href="https://github.com/googleapis/release-please/commit/b259d70270bd1c4358267aeff07de6aaaeddd9b9">b259d70</a>)</li>
<li>Update VERSION file in PHP repo if it exists (<a
href="https://github.com/googleapis/release-please/issues/2153">#2153</a>)
(<a
href="https://github.com/googleapis/release-please/commit/a7d3b73e605d0425b4a54a11ff2723a3075b4d3c">a7d3b73</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/v16.3.1...v16.4.0">16.4.0</a>
(2023-12-05)</h2>
<h3>Features</h3>
<ul>
<li><strong>types:</strong> Export types exposed by Manifest for use
downstream (<a
href="https://github.com/googleapis/release-please/issues/2147">#2147</a>)
(<a
href="https://github.com/googleapis/release-please/commit/b259d70270bd1c4358267aeff07de6aaaeddd9b9">b259d70</a>)</li>
<li>Update VERSION file in PHP repo if it exists (<a
href="https://github.com/googleapis/release-please/issues/2153">#2153</a>)
(<a
href="https://github.com/googleapis/release-please/commit/a7d3b73e605d0425b4a54a11ff2723a3075b4d3c">a7d3b73</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/googleapis/release-please/commit/ea774cbb1ef76ada0897e057016c6ad4bb171104"><code>ea774cb</code></a>
chore(main): release 16.4.0 (<a
href="https://github.com/googleapis/release-please/issues/2154">#2154</a>)</li>
<li><a
href="https://github.com/googleapis/release-please/commit/b259d70270bd1c4358267aeff07de6aaaeddd9b9"><code>b259d70</code></a>
feat(types): export types exposed by Manifest for use downstream (<a
href="https://github.com/googleapis/release-please/issues/2147">#2147</a>)</li>
<li><a
href="https://github.com/googleapis/release-please/commit/a7d3b73e605d0425b4a54a11ff2723a3075b4d3c"><code>a7d3b73</code></a>
feat: update VERSION file in PHP repo if it exists (<a
href="https://github.com/googleapis/release-please/issues/2153">#2153</a>)</li>
<li>See full diff in <a
href="https://github.com/googleapis/release-please/compare/v16.3.1...v16.4.0">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=16.3.1&new-version=16.4.0)](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 show <dependency name> ignore conditions` will show all
of the ignore conditions of the specified dependency
- `@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>

package.json

@@ -29,7 +29,7 @@
   "homepage": "https://github.com/bcoe/release-please-action#readme",
   "dependencies": {
     "@actions/core": "^1.10.0",
-    "release-please": "^16.3.1"
+    "release-please": "^16.4.0"
   },
   "devDependencies": {
     "@types/mocha": "^9.0.0",