Update pep8-naming version in template installation docs

This is now the version used as standard in all Arduino Tooling projects, which the "template" is intended to be used
with.

Author: per1234

workflow-templates/check-python-task.md

@@ -31,14 +31,14 @@ https://python-poetry.org/docs/#installation
 If your project does not already use Poetry, you can initialize the [`pyproject.toml`](https://python-poetry.org/docs/pyproject/) file using these commands:
 
 ```
-poetry init --python="^3.9" --dev-dependency="black@^25.1.0" --dev-dependency="flake8@^7.2.0" --dev-dependency="pep8-naming@^0.14.1"
+poetry init --python="^3.9" --dev-dependency="black@^25.1.0" --dev-dependency="flake8@^7.2.0" --dev-dependency="pep8-naming@^0.15.0"
 poetry install
 ```
 
 If already using Poetry, add the tool using this command:
 
 ```
-poetry add --dev "black@^25.1.0" "flake8@^7.2.0" "pep8-naming@^0.14.1"
+poetry add --dev "black@^25.1.0" "flake8@^7.2.0" "pep8-naming@^0.15.0"
 ```
 
 Commit the resulting `pyproject.toml` and `poetry.lock` files.