feat: support media channels

[LordOfPolls]

Pull Request Type

• Feature addition
• Bugfix
• Documentation update
• Code refactor
• Tests improvement
• CI/CD pipeline enhancement
• Other: [Replace with a description]

Description

Adds support for media channels - effectively just fancy forum channels

Please note, media channels are in beta - this pr may need to be updated

Changes

• Implement a class for media channels
• Add a mapping for media channels

Related Issues

discord/discord-api-docs#6232

Test Scenarios

Python Compatibility

• I've ensured my code works on Python 3.10.x
• I've ensured my code works on Python 3.11.x

Checklist

• I've run the pre-commit code linter over all edited files
• I've tested my changes on supported Python versions
• I've added tests for my code, if applicable
• I've updated / added documentation, where applicable

[codecov-commenter]

Codecov Report

Patch coverage: 100.00% and project coverage change: -0.10 ⚠️

Comparison is base (5a29624) 60.29% compared to head (150e6ae) 60.19%.

❗ Current head 150e6ae differs from pull request most recent head ae77515. Consider uploading reports for the commit ae77515 to get more accurate results

❗ Your organization is not using the GitHub App Integration. As a result you may experience degraded service beginning May 15th. Please install the Github App Integration for your organization. Read more.

Additional details and impacted files

@@             Coverage Diff              @@
##           unstable    #1458      +/-   ##
============================================
- Coverage     60.29%   60.19%   -0.10%     
============================================
  Files           139      139              
  Lines         14731    14738       +7     
============================================
- Hits           8882     8872      -10     
- Misses         5849     5866      +17     

Impacted Files	Coverage Δ
interactions/__init__.py	88.88% <ø> (ø)
interactions/models/__init__.py	100.00% <ø> (ø)
interactions/models/discord/__init__.py	100.00% <ø> (ø)
interactions/models/discord/channel.py	52.14% <100.00%> (+0.19%)	⬆️
interactions/models/discord/enums.py	96.62% <100.00%> (+0.01%)	⬆️

... and 4 files with indirect coverage changes

☔ View full report in Codecov by Sentry.
📢 Do you have feedback about the report comment? Let us know in this issue.

[i0bs]

General statements, not necessarily a full review