tools(deps-dev): Update vimeo/psalm requirement from 6.14.3 to 6.15.0 in /tools/psalm (#612)

Updates the requirements on
[vimeo/psalm](https://github.com/vimeo/psalm) to permit the latest
version.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/vimeo/psalm/releases">vimeo/psalm's
releases</a>.</em></p>
<blockquote>
<h2>6.15.0</h2>
<!-- raw HTML omitted -->
<p>Note: GPG signatures for older releases will be regenerated shortly
using the new <code>99BF4D9A33D65E1E</code> key, since the old one
expired.</p>
<h2>What's Changed</h2>
<h3>Features</h3>
<ul>
<li>Support PHP 8.4 interface property hooks by <a
href="https://github.com/adamaveray"><code>@​adamaveray</code></a> in <a
href="https://redirect.github.com/vimeo/psalm/pull/11569">vimeo/psalm#11569</a></li>
</ul>
<h3>Fixes</h3>
<ul>
<li>Improve performance of getIssueTrace by <a
href="https://github.com/danog"><code>@​danog</code></a> in <a
href="https://redirect.github.com/vimeo/psalm/pull/11629">vimeo/psalm#11629</a></li>
<li>Minor property hook improvements by <a
href="https://github.com/danog"><code>@​danog</code></a> in <a
href="https://redirect.github.com/vimeo/psalm/pull/11657">vimeo/psalm#11657</a></li>
<li>Fix GPG signing key by <a
href="https://github.com/danog"><code>@​danog</code></a> in <a
href="https://redirect.github.com/vimeo/psalm/pull/11658">vimeo/psalm#11658</a></li>
</ul>
<h3>Other changes</h3>
<ul>
<li>Add a missing argument of PDO::sqliteCreateFunction(). by <a
href="https://github.com/sukei"><code>@​sukei</code></a> in <a
href="https://redirect.github.com/vimeo/psalm/pull/11591">vimeo/psalm#11591</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a
href="https://github.com/adamaveray"><code>@​adamaveray</code></a> made
their first contribution in <a
href="https://redirect.github.com/vimeo/psalm/pull/11569">vimeo/psalm#11569</a></li>
<li><a href="https://github.com/sukei"><code>@​sukei</code></a> made
their first contribution in <a
href="https://redirect.github.com/vimeo/psalm/pull/11591">vimeo/psalm#11591</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/vimeo/psalm/compare/6.14.3...6.15.0">https://github.com/vimeo/psalm/compare/6.14.3...6.15.0</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/vimeo/psalm/commit/204d06619833a297b402cbc66be7f2df74437db4"><code>204d066</code></a>
Merge pull request <a
href="https://redirect.github.com/vimeo/psalm/issues/11658">#11658</a>
from vimeo/fix_gpg</li>
<li><a
href="https://github.com/vimeo/psalm/commit/9e350256cd9c75e6c7df4320c1d59b273febe153"><code>9e35025</code></a>
Bump</li>
<li><a
href="https://github.com/vimeo/psalm/commit/3363c201d724b70145595dbfa0893ba38e421f81"><code>3363c20</code></a>
Merge remote-tracking branch 'origin/6.x' into fix_gpg</li>
<li><a
href="https://github.com/vimeo/psalm/commit/9bb70a94e5cf7b0b1894af8f6626fc7ec002f999"><code>9bb70a9</code></a>
Merge pull request <a
href="https://redirect.github.com/vimeo/psalm/issues/11657">#11657</a>
from vimeo/minor_hook_improvements</li>
<li><a
href="https://github.com/vimeo/psalm/commit/be692462c3d64372cc678912dd78d8d71e94d64f"><code>be69246</code></a>
tmp</li>
<li><a
href="https://github.com/vimeo/psalm/commit/e532029bf67230ad9efe58f0c1a9c890d800e8ce"><code>e532029</code></a>
Fix GPG signing key</li>
<li><a
href="https://github.com/vimeo/psalm/commit/e98565e9000cc687092eb62da4f29e762d4809c6"><code>e98565e</code></a>
Minor property hook improvements</li>
<li><a
href="https://github.com/vimeo/psalm/commit/1bdf644da586787b95e001e6ff3382e7fa3b77f6"><code>1bdf644</code></a>
Merge pull request <a
href="https://redirect.github.com/vimeo/psalm/issues/11591">#11591</a>
from sukei/fix/pdo-sqlite</li>
<li><a
href="https://github.com/vimeo/psalm/commit/ca6e171f1f153a807bc50966a92054cd449a99ef"><code>ca6e171</code></a>
Merge pull request <a
href="https://redirect.github.com/vimeo/psalm/issues/11569">#11569</a>
from adamaveray/support_interface_property_hooks</li>
<li><a
href="https://github.com/vimeo/psalm/commit/79ca8ceec427898b9e5576a1c8d30c4dbe5bf222"><code>79ca8ce</code></a>
Merge pull request <a
href="https://redirect.github.com/vimeo/psalm/issues/11629">#11629</a>
from danog/improve_getIssueTrace</li>
<li>Additional commits viewable in <a
href="https://github.com/vimeo/psalm/compare/6.14.3...6.15.0">compare
view</a></li>
</ul>
</details>
<br />

<details>
<summary>Most Recent Ignore Conditions Applied to This Pull
Request</summary>

| Dependency Name | Ignore Conditions |
| --- | --- |
| vimeo/psalm | [>= 5.a, < 6] |
</details>


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tools/psalm/composer.json

@@ -7,7 +7,7 @@
     },
     "require-dev": {
         "roave/security-advisories": "dev-latest",
-        "vimeo/psalm": "6.14.3"
+        "vimeo/psalm": "6.15.0"
     },
     "prefer-stable": true,
     "config": {