Update the CONTRIBUTING.md file to add details regarding pre-commit & GitHub Actions local setup

Proposed changes

This is regarding the issue #246

Add details to CONTRIBUTING.md on auto-assigning issues, pre-commit installation, and GitHub Actions local setup using 'act'.

Auto-assigning issues: Add a section explaining auto-assigning issues on the comment 'take', referencing the configuration in .github/workflows/assign-on-comment.yml.
Pre-commit installation and execution: Add a section detailing pre-commit installation and execution, referencing the configuration in .pre-commit-config.yaml.
GitHub Actions local setup using 'act': Add a section providing instructions for running specific jobs and handling MacBooks with M1 processors.

[ ] Bugfix (non-breaking change which fixes an issue)
[ ] New feature (non-breaking change which adds functionality)
[ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
[x] Documentation Update (if none of the other choices apply)

N/A