Bump pylint from 3.3.8 to 4.0.4 (#134)

Bumps [pylint](https://github.com/pylint-dev/pylint) from 3.3.8 to
4.0.4.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/pylint-dev/pylint/commit/e16f942166511d6fb4427e503a734152fae0c4fe"><code>e16f942</code></a>
Bump pylint to 4.0.4, update changelog</li>
<li><a
href="https://github.com/pylint-dev/pylint/commit/657b386c0a83202faa95c9a525b8feb80a4c11ab"><code>657b386</code></a>
[Backport maintenance/4.0.x] [invalid-name] Fix FP for exclusive
assignment o...</li>
<li><a
href="https://github.com/pylint-dev/pylint/commit/03f8a922a2eabe5b517457807cc992e122dcc9c0"><code>03f8a92</code></a>
[Backport maintenance/4.0.x] fix: avoid false positive when module-level
name...</li>
<li><a
href="https://github.com/pylint-dev/pylint/commit/84b6552b86e210097ac29de7ef64b152efb4a454"><code>84b6552</code></a>
Bump pylint to 4.0.3, update changelog (<a
href="https://redirect.github.com/pylint-dev/pylint/issues/10741">#10741</a>)</li>
<li><a
href="https://github.com/pylint-dev/pylint/commit/77b0cd8c0e40eb563ab96067be6bdb3e9e266f1e"><code>77b0cd8</code></a>
[Backport maintenance/4.0.x] fix(expand_modules): pass ignore_list to
modutil...</li>
<li><a
href="https://github.com/pylint-dev/pylint/commit/755f2d0327809a5b358b99ad7fc67a7a5a2faad0"><code>755f2d0</code></a>
[Backport maintenance/4.0.x] Upgrade astroid to 4.0.2 (<a
href="https://redirect.github.com/pylint-dev/pylint/issues/10733">#10733</a>)</li>
<li><a
href="https://github.com/pylint-dev/pylint/commit/c96a9e4d232abcfa1d7f449839b68337816305e9"><code>c96a9e4</code></a>
[Backport maintenance/4.0.x] Fix crash when a variable annotation is
used as ...</li>
<li><a
href="https://github.com/pylint-dev/pylint/commit/108191ebbcd9dc8fa9e3fb71c83fd247d2f6ccd1"><code>108191e</code></a>
[Backport maintenance/4.0.x] Fix a false positive for class attribute
typed w...</li>
<li><a
href="https://github.com/pylint-dev/pylint/commit/0ed81725382db48ac0061c96c1948f42fe75f85d"><code>0ed8172</code></a>
[Backport maintenance/4.0.x] Fix crash when a <code>slice</code> object
is called (<a
href="https://redirect.github.com/pylint-dev/pylint/issues/10728">#10728</a>)</li>
<li><a
href="https://github.com/pylint-dev/pylint/commit/b128b7d909bf541b2978d84bfe5ed4f4d67210e5"><code>b128b7d</code></a>
[Backport maintenance/4.0.x] Fix a false positive for
``unbalanced-tuple-unpa...</li>
<li>Additional commits viewable in <a
href="https://github.com/pylint-dev/pylint/compare/v3.3.8...v4.0.4">compare
view</a></li>
</ul>
</details>
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Author: frequenz-auto-dependabot[bot]

pyproject.toml

@@ -79,7 +79,7 @@ dev-pylint = [
 ]
 dev-pytest = [
   "pytest == 9.0.2",
-  "pylint == 3.3.8", # We need this to check for the examples
+  "pylint == 4.0.4", # We need this to check for the examples
   "frequenz-repo-config[extra-lint-examples] == 0.14.0",
   "pytest-mock == 3.15.1",
   "pytest-asyncio == 1.3.0",