Bump mypy from 1.7.0 to 1.7.1 (#278)

Bumps [mypy](https://github.com/python/mypy) from 1.7.0 to 1.7.1.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/python/mypy/commit/6b3c41838d8e7a39242b6fd035535e2d76eabfc6"><code>6b3c418</code></a>
Update version to 1.7.1 (without +dev)</li>
<li><a
href="https://github.com/python/mypy/commit/c10e17348f2eacbbeae80eb6c10c661c0137d849"><code>c10e173</code></a>
[mypyc] Fix regression with nested functions (<a
href="https://redirect.github.com/python/mypy/issues/16484">#16484</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/e6399d10b0a1cdb104559482fad1b4dc0e2de6ac"><code>e6399d1</code></a>
Fix polymorphic application for callback protocols (<a
href="https://redirect.github.com/python/mypy/issues/16514">#16514</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/661adb756800ecc40fabbe62e9339efd253aff4e"><code>661adb7</code></a>
Fix crash on strict-equality with recursive types (<a
href="https://redirect.github.com/python/mypy/issues/16483">#16483</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/6c8e0cc47c014894ea41621a10f3d1b465322362"><code>6c8e0cc</code></a>
Ignore position if imprecise arguments are matched by name (<a
href="https://redirect.github.com/python/mypy/issues/16471">#16471</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/5c354c41c0fbb74418afcbd30ba822694be28d11"><code>5c354c4</code></a>
Fix missing meet case exposed by len narrowing (<a
href="https://redirect.github.com/python/mypy/issues/16470">#16470</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/88791cabe0521f77b699405154d90f3bb7c6b31b"><code>88791ca</code></a>
Exclude private attributes from override checks (<a
href="https://redirect.github.com/python/mypy/issues/16464">#16464</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/4b5b316beb570bba4c9b7797deb2e6d7df0552d0"><code>4b5b316</code></a>
Special-case unions in polymorphic inference (<a
href="https://redirect.github.com/python/mypy/issues/16461">#16461</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/f862d3ef540c38e7efd2fffd64fc732d6318dfb4"><code>f862d3e</code></a>
Fix crash on Callable self in <strong>call</strong> (<a
href="https://redirect.github.com/python/mypy/issues/16453">#16453</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/fe79a59e44299a3cc8025aa5084e08773c872a54"><code>fe79a59</code></a>
Bump version to 1.7.1+dev</li>
<li>See full diff in <a
href="https://github.com/python/mypy/compare/v1.7.0...v1.7.1">compare
view</a></li>
</ul>
</details>
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