refactor(terraform-docs): Upgrade and improvements

[chris3ware]

terraform-docs workflow file has been updated following the action upgrade to improve the job summaries and simplify the commit process.

The following steps have been removed:

• get-temp-token
• Set file env path
• push-with-sg

And replaced with:

• gh-commit-action

This action uses the GITHUB_TOKEN for authentication and the GitHub GPG key which removes the need to generate a token and push the changes with a GPG key using the gh CLI. Expressions to prevent loops have also been removed because GITHUB_TOKEN does this automatically.

[3ware-release[bot]]

This PR is included in version 2.3.0