feat(github): add github integration

[ReenigneArcher]

Description

This PR aims to more tightly integrate GitHub with our discord bot.

Main features to add

1. Assign roles based on GitHub sponsorship status
2. Assign dev-user role based on GitHub account... (whether it exists, has contributed, or something along those lines)

TODO:

• Persist OAuth status?
• Periodically check GitHub user's for sponsor status, and add user to sponsor roles, or revoke accordingly
• Callback to public URL
• Possible to hide disocrd bot IP?
• Improved SSL certs
• Update dockerfile
• Update readme/docs

Screenshot

Issues Fixed or Closed

Type of Change

• Bug fix (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)
• Dependency update (updates to dependencies)
• Documentation update (changes to documentation)
• Repository update (changes to repository files, e.g. .github/...)

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated the in code docstring/documentation-blocks for new or existing methods/components

[codecov]

Codecov Report

Attention: Patch coverage is 16.83168% with 84 lines in your changes missing coverage. Please review.

Project coverage is 44.40%. Comparing base (362aef2) to head (14cb7f9).

Files with missing lines	Patch %	Lines
src/crypto.py	0.00%	34 Missing ⚠️
src/webapp.py	0.00%	30 Missing ⚠️
src/discord/cogs/github_commands.py	48.57%	18 Missing ⚠️
src/__main__.py	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #368      +/-   ##
==========================================
- Coverage   46.81%   44.40%   -2.42%     
==========================================
  Files          15       17       +2     
  Lines         786      867      +81     
==========================================
+ Hits          368      385      +17     
- Misses        418      482      +64     

Files with missing lines	Coverage Δ
src/__main__.py	0.00% <0.00%> (ø)
src/discord/cogs/github_commands.py	48.57% <48.57%> (ø)
src/webapp.py	0.00% <0.00%> (ø)
src/crypto.py	0.00% <0.00%> (ø)

[sonarcloud]

Quality Gate failed

Failed conditions
1 New issue
1 Security Hotspot
1 New Code Smells (required ≤ 0)

See analysis details on SonarCloud

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