Add gitleaks config file and update git ignore list

[branic]

What does this PR do?

Adds the .ansible directory to the git ignore list. Running pre-commit is causing the .ansible directory to be created in the current working directory and automated PR creation such as update the pre-commit versions to include it in the git commit.

This caused Red Hat Infosec to raise a security leak as the kubernetes.core collection tests include passwords and/or tokens needed for tests.

In addition to adding the .ansible directory to the git ignore list this also include a gitleaks configuration file that will cause gitleaks to not raise a security violation for passwords and tokens in the .ansible/collections directory. This is being added at the request of the Red Hat Infosec team and the contents of the .gitleaks.toml file was provided by them.

How should this be tested?

N/A

Is there a relevant Issue open for this?

None

Other Relevant info, PRs, etc

See PRs #266 and #269 for example of where the .ansible directory was included in the automated update to the pre-commit configuration.

[djdanielsson]

LGTM