Bump petgraph from 0.6.2 to 0.6.3 (#441)

Bumps [petgraph](https://github.com/petgraph/petgraph) from 0.6.2 to
0.6.3.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/petgraph/petgraph/blob/master/RELEASES.rst">petgraph's
changelog</a>.</em></p>
<blockquote>
<h1>Version 0.6.3 (2023-02-07)</h1>
<ul>
<li>Added an iterator over subgraph isomorphisms
(<code>[#500](https://github.com/petgraph/petgraph/issues/500)</code>_)</li>
<li>Added serde support on <code>GraphMap</code>
(<code>[#496](https://github.com/petgraph/petgraph/issues/496)</code>_)</li>
<li>Added <code>reverse</code> method for <code>StableGraph</code>
(<code>[#533](https://github.com/petgraph/petgraph/issues/533)</code>_)</li>
<li>Added <code>edges_connecting</code> iterator for
<code>StableGraph</code>
(<code>[#521](https://github.com/petgraph/petgraph/issues/521)</code>_)</li>
<li>Fix Floyd-Warshall algorithm behaviour on undirected graphs
(<code>487</code>_)</li>
<li>Fix IntoEdgesDirected implementation for NodeFiltered when direction
is Incoming (<code>476</code>_)</li>
<li>Fix cardinality check in subgraph isomorphism
(<code>472</code>_)</li>
<li>Fix UB in <code>MatrixGraph</code>
(<code>[#505](https://github.com/petgraph/petgraph/issues/505)</code>_)</li>
</ul>
<p>..
_<code>[#472](https://github.com/petgraph/petgraph/issues/472)</code>:
<a
href="https://github-redirect.dependabot.com/petgraph/petgraph/issues/472">petgraph/petgraph#472</a>
..
_<code>[#476](https://github.com/petgraph/petgraph/issues/476)</code>:
<a
href="https://github-redirect.dependabot.com/petgraph/petgraph/issues/476">petgraph/petgraph#476</a>
..
_<code>[#487](https://github.com/petgraph/petgraph/issues/487)</code>:
<a
href="https://github-redirect.dependabot.com/petgraph/petgraph/issues/487">petgraph/petgraph#487</a>
..
_<code>[#496](https://github.com/petgraph/petgraph/issues/496)</code>:
<a
href="https://github-redirect.dependabot.com/petgraph/petgraph/issues/496">petgraph/petgraph#496</a>
..
_<code>[#500](https://github.com/petgraph/petgraph/issues/500)</code>:
<a
href="https://github-redirect.dependabot.com/petgraph/petgraph/issues/500">petgraph/petgraph#500</a>
..
_<code>[#505](https://github.com/petgraph/petgraph/issues/505)</code>:
<a
href="https://github-redirect.dependabot.com/petgraph/petgraph/issues/505">petgraph/petgraph#505</a>
..
_<code>[#521](https://github.com/petgraph/petgraph/issues/521)</code>:
<a
href="https://github-redirect.dependabot.com/petgraph/petgraph/issues/521">petgraph/petgraph#521</a>
..
_<code>[#533](https://github.com/petgraph/petgraph/issues/533)</code>:
<a
href="https://github-redirect.dependabot.com/petgraph/petgraph/issues/533">petgraph/petgraph#533</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li>See full diff in <a
href="https://github.com/petgraph/petgraph/commits/0.6.3">compare
view</a></li>
</ul>
</details>
<br />


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