Draft: Create rps report

The code changes introduce a new report type called "rps" in the Greenhat tool.

This report provides statistics on various operations such as web requests, Git pulls, pushes, and API usage. The report calculates from gitlab-shell/gitlab-shell.log and nginx/gitlab-access.log logs and displays the mean time taken for each operation.

These enhancements improve the tool's reporting capabilities and user experience.

Based on https://gitlab.com/gitlab-com/support/toolbox/dotfiles/-/blob/main/scripts/get-rps.rb?ref_type=heads

Output sample