Minor clean-ups

[nedbat]

No description provided.

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (3ee0182) 90.04% compared to head (56e181d) 90.05%.
Report is 3 commits behind head on master.

Files	Patch %	Lines
openedx_webhooks/tasks/pr_tracking.py	95.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #283      +/-   ##
==========================================
+ Coverage   90.04%   90.05%   +0.01%     
==========================================
  Files          38       38              
  Lines        2853     2897      +44     
  Branches      398      396       -2     
==========================================
+ Hits         2569     2609      +40     
- Misses        259      262       +3     
- Partials       25       26       +1     

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