ref: fix types in sentry.rules.processing

[asottile-sentry]

No description provided.

[saponifi3d]

🙏 thanks for this cleanup!

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.04%. Comparing base (29ff72e) to head (a07b78d).
Report is 16 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #72895      +/-   ##
==========================================
+ Coverage   73.27%   78.04%   +4.76%     
==========================================
  Files        6602     6604       +2     
  Lines      294280   294420     +140     
  Branches    50731    50757      +26     
==========================================
+ Hits       215645   229781   +14136     
+ Misses      72049    58304   -13745     
+ Partials     6586     6335     -251     

Files	Coverage Δ
src/sentry/rules/processing/delayed_processing.py	86.03% <100.00%> (ø)

... and 845 files with indirect coverage changes