Bump mypy from 1.4.1 to 1.5.0 (#223)

Bumps [mypy](https://github.com/python/mypy) from 1.4.1 to 1.5.0.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/python/mypy/commit/2ff7c0de571d434a9a1f82fa183d32fa32999b40"><code>2ff7c0d</code></a>
[release 1.5] stubtest: Fix <code>__mypy-replace</code> false positives
(<a
href="https://redirect.github.com/python/mypy/issues/15689">#15689</a>)
(<a
href="https://redirect.github.com/python/mypy/issues/15751">#15751</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/373b73abeb14fdd1f3021f4c27fe1721d2986ed4"><code>373b73a</code></a>
[Release 1.5] Update typing_extensions stubs (<a
href="https://redirect.github.com/python/mypy/issues/15745">#15745</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/a6bd80ed8c91138ce6112b5ce71fc406d426cd01"><code>a6bd80e</code></a>
Remove <code>+dev</code> from version</li>
<li><a
href="https://github.com/python/mypy/commit/9dd0d396e0a8b477e4bf723a6a24d82db7785ea8"><code>9dd0d39</code></a>
Manually revert &quot;Add support for attrs.fields (<a
href="https://redirect.github.com/python/mypy/issues/15021">#15021</a>)&quot;
(<a
href="https://redirect.github.com/python/mypy/issues/15674">#15674</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/45e1bf7a83686a5b933eb009447e89e5d1c41ca9"><code>45e1bf7</code></a>
Typeshed cherry-pick: Fix <a
href="https://github.com/patch"><code>@​patch</code></a> when
<code>new</code> is missing (<a
href="https://redirect.github.com/python/mypy/issues/10459">#10459</a>)
(<a
href="https://redirect.github.com/python/mypy/issues/15673">#15673</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/7a9418356082092d2cb1585acb816b2074cff43e"><code>7a94183</code></a>
Fix dataclass/protocol crash on joining types (<a
href="https://redirect.github.com/python/mypy/issues/15629">#15629</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/2ebd51e881490f4d20635cde92ef9e3edbbad68c"><code>2ebd51e</code></a>
Teach <code>stubgen</code> to work with <code>complex</code> and unary
expressions (<a
href="https://redirect.github.com/python/mypy/issues/15661">#15661</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/39833810ddcd29561f3ffed44703380aa26a68be"><code>3983381</code></a>
Fix testLiteralMeets failure (<a
href="https://redirect.github.com/python/mypy/issues/15659">#15659</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/3bf85217386806b0f68bf8857b61379ae2f6ad1e"><code>3bf8521</code></a>
Consistently avoid type-checking unreachable code (<a
href="https://redirect.github.com/python/mypy/issues/15386">#15386</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/dfea43ff96976435ee5f37d1294cca792b8f26cf"><code>dfea43f</code></a>
Add error code &quot;explicit-override&quot; for strict <a
href="https://github.com/override"><code>@​override</code></a> mode (PEP
698) (<a
href="https://redirect.github.com/python/mypy/issues/15512">#15512</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/python/mypy/compare/v1.4.1...v1.5.0">compare
view</a></li>
</ul>
</details>
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