fix(deps-dev): bump micromark from 4.0.2 to 4.0.3 (#374)

Bumps [micromark](https://github.com/micromark/micromark) from 4.0.2 to
4.0.3.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/micromark/micromark/commit/4aec52013e73e8b33d07dc6a55de7a2ff9fcf64e"><code>4aec520</code></a>
4.0.3</li>
<li><a
href="https://github.com/micromark/micromark/commit/c890f37cd9c00fd934b08ba203fb5af4df51a58e"><code>c890f37</code></a>
micromark-core-commonmark: 2.0.4</li>
<li><a
href="https://github.com/micromark/micromark/commit/d9679ad653c87e9378d0313cb734ad10a426da49"><code>d9679ad</code></a>
micromark-factory-space: 2.1.0</li>
<li><a
href="https://github.com/micromark/micromark/commit/21cd4c321a325131c39736b210eea425cae0d1e8"><code>21cd4c3</code></a>
micromark-util-edit-map: 1.0.0</li>
<li><a
href="https://github.com/micromark/micromark/commit/b5f6a6f727c74c4700867e30f69f2049e6d5d9fc"><code>b5f6a6f</code></a>
micromark-util-types: 2.0.3</li>
<li><a
href="https://github.com/micromark/micromark/commit/3f0d48402ef430b45ce675e8b86c3320fb5ff0d8"><code>3f0d484</code></a>
micromark-core-commonmark: fix attention flanking next to others</li>
<li><a
href="https://github.com/micromark/micromark/commit/84219700b7ec1f07b209b71b9f389594cf1008e9"><code>8421970</code></a>
micromark: use edit map in text initializer</li>
<li><a
href="https://github.com/micromark/micromark/commit/34234f98f7bf1cb2c62b162ee4e378f65e0ab89a"><code>34234f9</code></a>
micromark-factory-space: add <code>factorySpaceMinMax</code></li>
<li><a
href="https://github.com/micromark/micromark/commit/b31f51c393461def5b5a347fabbb3147052aaa93"><code>b31f51c</code></a>
micromark-core-commonmark: refactor non-lazy cont check</li>
<li><a
href="https://github.com/micromark/micromark/commit/c0f7daf46569029bbede97dbf963236ba9763945"><code>c0f7daf</code></a>
micromark-core-commonmark: add list of start tokens</li>
<li>Additional commits viewable in <a
href="https://github.com/micromark/micromark/compare/4.0.2...4.0.3">compare
view</a></li>
</ul>
</details>
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