fix: Actually place channel ids into cache.dm_channels

[silasary]

Pull Request Type

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

Description

After a lot of digging into why I was hitting "You are opening DMs too quickly" errors more than I should have been, I discovered that we never actually stored anything into the cache, and were hitting the API every single lookup.

This fixes that.

Changes

• Adds a call to place_dm_channel_id

Related Issues

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]

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Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 46.47%. Comparing base (7233db2) to head (17b1dc4).
Report is 2 commits behind head on unstable.

Files with missing lines	Patch %	Lines
interactions/client/smart_cache.py	0.00%	1 Missing ⚠️

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Additional details and impacted files

@@             Coverage Diff              @@
##           unstable    #1761      +/-   ##
============================================
+ Coverage     46.41%   46.47%   +0.05%     
============================================
  Files           149      149              
  Lines         16272    16273       +1     
============================================
+ Hits           7553     7563      +10     
+ Misses         8719     8710       -9     

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