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://redirect.github.com/googleapis/release-please/issues/2147">#2147</a>)
(<a
href="b259d70270">b259d70</a>)</li>
<li>Update VERSION file in PHP repo if it exists (<a
href="https://redirect.github.com/googleapis/release-please/issues/2153">#2153</a>)
(<a
href="a7d3b73e60">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://redirect.github.com/googleapis/release-please/issues/2147">#2147</a>)
(<a
href="b259d70270">b259d70</a>)</li>
<li>Update VERSION file in PHP repo if it exists (<a
href="https://redirect.github.com/googleapis/release-please/issues/2153">#2153</a>)
(<a
href="a7d3b73e60">a7d3b73</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="ea774cbb1e"><code>ea774cb</code></a>
chore(main): release 16.4.0 (<a
href="https://redirect.github.com/googleapis/release-please/issues/2154">#2154</a>)</li>
<li><a
href="b259d70270"><code>b259d70</code></a>
feat(types): export types exposed by Manifest for use downstream (<a
href="https://redirect.github.com/googleapis/release-please/issues/2147">#2147</a>)</li>
<li><a
href="a7d3b73e60"><code>a7d3b73</code></a>
feat: update VERSION file in PHP repo if it exists (<a
href="https://redirect.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)

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package-lock.json

@@ -10,7 +10,7 @@
       "license": "Apache-2.0",
       "dependencies": {
         "@actions/core": "^1.10.0",
-        "release-please": "^16.3.1"
+        "release-please": "^16.4.0"
       },
       "devDependencies": {
         "@types/mocha": "^9.0.0",
@@ -5257,9 +5257,9 @@
       }
     },
     "node_modules/release-please": {
-      "version": "16.3.1",
-      "resolved": "https://registry.npmjs.org/release-please/-/release-please-16.3.1.tgz",
-      "integrity": "sha512-PxI/ACuQ4IBnRhP4mfNcuZGsHX+OjdiAV0Yh6C1A2e3CEKfWOvxMzhlsHBJSYJYhSBIVZNAaIbduxCaUW0LSxg==",
+      "version": "16.4.0",
+      "resolved": "https://registry.npmjs.org/release-please/-/release-please-16.4.0.tgz",
+      "integrity": "sha512-AVAmz/kXlvcQVyvfnLCOk1LnJhzHZ0v8FuvePgprvCZJ0szfquI/rWoQ4iC8GWwoTOxhEEMrdzBXtSI8cQGAUQ==",
       "dependencies": {
         "@conventional-commits/parser": "^0.4.1",
         "@google-automations/git-file-utils": "^1.2.5",

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",