Bump mypy from 1.4.0 to 1.4.1 (#462)

Bumps [mypy](https://github.com/python/mypy) from 1.4.0 to 1.4.1.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/python/mypy/commit/3534bacc4c0d3c4b1983a533e2a36cce43f2ec9d"><code>3534bac</code></a>
Remove +dev from version</li>
<li><a
href="https://github.com/python/mypy/commit/f36ea01e9de2ffac42a2615307f3692fd8e84c4a"><code>f36ea01</code></a>
Fix async iterator body stripping (<a
href="https://redirect.github.com/python/mypy/issues/15491">#15491</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/ba7887be34391ae777cb32ca85719f3b3fa01c06"><code>ba7887b</code></a>
Revert &quot;Fix spurious errors on builtins.open (<a
href="https://redirect.github.com/python/mypy/issues/15161">#15161</a>)&quot;
(<a
href="https://redirect.github.com/python/mypy/issues/15508">#15508</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/16fe5da0bd9be4d0669f00a47d260894c988cf87"><code>16fe5da</code></a>
Fix readthedocs build (<a
href="https://redirect.github.com/python/mypy/issues/15437">#15437</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/9b327d12bc3b57cc30ed76dcd3e07a3674da17a2"><code>9b327d1</code></a>
Use consistent anchors for error codes (<a
href="https://redirect.github.com/python/mypy/issues/15435">#15435</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/32abe0210092e6e074d9c2cc1862a3cf7c2421c5"><code>32abe02</code></a>
docs: ref redirector (<a
href="https://redirect.github.com/python/mypy/issues/15432">#15432</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/e5a5b33e12e850d8cf11e156267adf8ee85e6221"><code>e5a5b33</code></a>
Unbreak CI (<a
href="https://redirect.github.com/python/mypy/issues/15505">#15505</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/81d01aa0bdec8f9c2ed85d39b6077572abcda72a"><code>81d01aa</code></a>
Fix PEP 561 editable install test case (<a
href="https://redirect.github.com/python/mypy/issues/15493">#15493</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/eba351e4016a57fad611cc14cef456a741a4713b"><code>eba351e</code></a>
Add pip as test requirement for PEP 660 editable installs (<a
href="https://redirect.github.com/python/mypy/issues/15482">#15482</a>)</li>
<li><a
href="https://github.com/python/mypy/commit/9faffe87c0f15980afc041183148829208f4fc8f"><code>9faffe8</code></a>
Bump typing_extensions dependency (<a
href="https://redirect.github.com/python/mypy/issues/15488">#15488</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/python/mypy/compare/v1.4.0...v1.4.1">compare
view</a></li>
</ul>
</details>
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</details>

Author: llucax

pyproject.toml

@@ -72,7 +72,7 @@ pytest = [
   "frequenz-sdk[examples]",
 ]
 mypy = [
-  "mypy == 1.4.0",
+  "mypy == 1.4.1",
   "grpc-stubs == 1.24.12", # This dependency introduces breaking changes in patch releases
   # For checking the noxfile, docs/ script, and tests
   "frequenz-sdk[docs-gen,nox,pytest]",