Bump sybil from 5.0.1 to 5.0.2 (#395)

Bumps [sybil](https://github.com/simplistix/sybil) from 5.0.1 to 5.0.2.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/simplistix/sybil/blob/master/CHANGELOG.rst">sybil's
changelog</a>.</em></p>
<blockquote>
<h2>5.0.2 (19 May 2023)</h2>
<ul>
<li>
<p>Fixed bug in the :func:<code>repr</code> of
:class:<code>LexedRegion</code> instances where a lexeme was
<code>None</code>.</p>
</li>
<li>
<p>Fixed lexing of ReST directives, such as
:rst:dir:<code>code-block</code>, where they occurred
at the end of a docstring.</p>
</li>
<li>
<p>Ensure the :class:<code>~sybil.Document.namespace</code> in which
doctests are evaluated always has a
<code>__name__</code>. This is required by an implementation detail of
:any:<code>typing.runtime_checkable</code>.</p>
</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/simplistix/sybil/commit/49bf17b4ef4039cfd0e7d43055fb5620ff72b878"><code>49bf17b</code></a>
Prepare for 5.0.2 release</li>
<li><a
href="https://github.com/simplistix/sybil/commit/2b7711c10da12a4551c7599e495f6d4a9637d866"><code>2b7711c</code></a>
Ensure the doctest namespace always has a <strong>name</strong></li>
<li><a
href="https://github.com/simplistix/sybil/commit/90a385c4954c80d26d3c76e428ee6f9ec0835e21"><code>90a385c</code></a>
Fix lexing of ReST directives at the end of string</li>
<li><a
href="https://github.com/simplistix/sybil/commit/abc0a6c847f9e953fae053306847c5c2cbddad94"><code>abc0a6c</code></a>
Helper to lex from text not in a file</li>
<li><a
href="https://github.com/simplistix/sybil/commit/447efed9ba1bd035cbfade80657097a6cc65aadb"><code>447efed</code></a>
Remove debug prints</li>
<li><a
href="https://github.com/simplistix/sybil/commit/a2aee8ddca58093fcc1360f12cd68a2c5a902b46"><code>a2aee8d</code></a>
Fix typo</li>
<li><a
href="https://github.com/simplistix/sybil/commit/64a136be1ba83d57a01fa905cfa54e3f44165706"><code>64a136b</code></a>
constant for SAMPLE_PATH</li>
<li><a
href="https://github.com/simplistix/sybil/commit/e10666b682541d6a6b7c4709524de27498f48f0e"><code>e10666b</code></a>
Fix repr of LexedRegion where lexeme was None</li>
<li><a
href="https://github.com/simplistix/sybil/commit/330a8373bf93522a91ffe373afad91aaae603274"><code>330a837</code></a>
Work around RTD ssl v urllib2 issue</li>
<li>See full diff in <a
href="https://github.com/simplistix/sybil/compare/5.0.1...5.0.2">compare
view</a></li>
</ul>
</details>
<br />

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</details>

Author: daniel-zullo-frequenz

pyproject.toml

@@ -75,7 +75,7 @@ pytest = [
     "time-machine == 2.9.0",
     "async-solipsism == 0.5",
     # For checking docstring code examples
-    "sybil == 5.0.1",
+    "sybil == 5.0.2",
     "pylint == 2.17.4",
 ]
 mypy = [