Bump doctrine/.github from 5.3.0 to 6.0.0 (#6642)

Bumps [doctrine/.github](https://github.com/doctrine/.github) from 5.3.0
to 6.0.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/doctrine/.github/releases">doctrine/.github's
releases</a>.</em></p>
<blockquote>
<h2>PHP 8.4 by default</h2>
<h1>Changed</h1>
<ul>
<li>jobs now run by default on PHP 8.4</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/doctrine/.github/commit/1d4be832a360a0486acc1e7085f2757f5e193148"><code>1d4be83</code></a>
Merge pull request <a
href="https://github.com/doctrine/.github/issues/56">#56</a>
from greg0ire/php-8-4</li>
<li><a
href="https://github.com/doctrine/.github/commit/b5bfddb54dae525ff60d95a3f8f4382a6d7ddfd8"><code>b5bfddb</code></a>
Run jobs on PHP 8.4 by default</li>
<li>See full diff in <a
href="https://github.com/doctrine/.github/compare/5.3.0...6.0.0">compare
view</a></li>
</ul>
</details>
<br />


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.github/workflows/coding-standards.yml

@@ -25,4 +25,4 @@ on:
 jobs:
   coding-standards:
     name: "Coding Standards"
-    uses: "doctrine/.github/.github/workflows/coding-standards.yml@5.3.0"
+    uses: "doctrine/.github/.github/workflows/coding-standards.yml@6.0.0"

.github/workflows/documentation.yml

@@ -17,4 +17,4 @@ on:
 jobs:
   documentation:
     name: "Documentation"
-    uses: "doctrine/.github/.github/workflows/documentation.yml@5.3.0"
+    uses: "doctrine/.github/.github/workflows/documentation.yml@6.0.0"