Build(deps): Bump the minor group with 2 updates

Bumps the minor group with 2 updates: [flake8](https://github.com/pycqa/flake8) and [pytest](https://github.com/pytest-dev/pytest).


Updates `flake8` from 7.2.0 to 7.3.0
- [Commits](PyCQA/flake8@7.2.0...7.3.0)

Updates `pytest` from 8.3.5 to 8.4.1
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@8.3.5...8.4.1)

---
updated-dependencies:
- dependency-name: flake8
  dependency-version: 7.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: minor
- dependency-name: pytest
  dependency-version: 8.4.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pyproject.toml

@@ -48,7 +48,7 @@ email = "[email protected]"
 
 [project.optional-dependencies]
 dev-flake8 = [
-  "flake8 == 7.2.0",
+  "flake8 == 7.3.0",
   "flake8-docstrings == 1.7.0",
   "flake8-pyproject == 1.2.3", # For reading the flake8 config from pyproject.toml
   "pydoclint == 0.6.6",
@@ -80,7 +80,7 @@ dev-pylint = [
   "pymdownx-superfence-filter-lines[dev-mkdocs,dev-noxfile,dev-pytest]",
 ]
 dev-pytest = [
-  "pytest == 8.3.5",
+  "pytest == 8.4.1",
   "frequenz-repo-config[extra-lint-examples] == 0.13.4",
   "pytest-mock == 3.14.1",
   "pytest-asyncio == 0.26.0",