feat: add pre-commit hook support

[ccoVeille]

Description

Add pre-commit.com support in mockery.

• Fixes #791

Type of change

• [ ] Bug fix (non-breaking change which fixes an issue)
• [X] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [X] This change requires a documentation update

Version of Go used when building/testing:

• [ ] 1.11
• [ ] 1.12
• [ ] 1.13
• [ ] 1.14
• [ ] 1.15
• [ ] 1.16
• [ ] 1.17
• [ ] 1.18
• [ ] 1.19
• [ ] 1.20
• [X] Not relevant

How Has This Been Tested?

Locally, by following the guide I provide in installation.md file

Checklist

• [X] My code follows the style guidelines of this project
• [X] I have performed a self-review of my code
• [ ] I have commented my code, particularly in hard-to-understand areas
• [X] I have made corresponding changes to the documentation
• [ ] My changes generate no new warnings
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] New and existing unit tests pass locally with my changes