Remove unused type stubs

These stubs were probably added to the project when we were using
some dependencies that were removed or replaced. We can safely remove
these type stubs now.

Signed-off-by: Leandro Lucarella <[email protected]>

Author: llucax

pyproject.toml

@@ -74,12 +74,7 @@ dev-mypy = [
   "mypy == 1.8.0",
   "grpc-stubs == 1.24.12",               # This dependency introduces breaking changes in patch releases
   "types-Markdown == 3.5.0.3",
-  "types-PyYAML == 6.0.12.12",
-  "types-Pygments == 2.17.0.0",
-  "types-colorama == 0.4.15.12",
   "types-protobuf == 4.24.0.20240129",
-  "types-python-dateutil == 2.8.19.14",
-  "types-pytz == 2023.3.1.1",
   "types-setuptools == 69.0.0.20240125",
   # For checking the noxfile, docs/ script, and tests
   "frequenz-sdk[dev-mkdocs,dev-noxfile,dev-pytest]",