Add .venv and .tox dirs to .gitignore and .ansible-lint config files

[trfore]

I don't have an intricate knowledge all the CI workflows in this repo or the parent team-devtools, so if there is rational for including .venv then please ignore or cherry-pick this PR. But it would be helpful for local dev given:

• building and installing molecule-*.whl can introduce 3rd party packages into local .venv that ansible-lint (via tox -e lint or ansible-lint) will throw errors on and prevent pushing commits.
• creating .venv will trigger git to check for changes, while this can be blocked using a global ignore file, not everyone uses or can use it.

I did not edit .yamllint, but running it via CLI yamllint . will throw similar errors. However, the pre-commit configuration skips these directories. A quick fix to .yamllint would be:

extends: default
ignore:
  - .tox/
  - .venv/
rules:
...