ref: get proper base manager typing

[asottile-sentry]

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 78.08%. Comparing base (3dc95d7) to head (0d84170). Report is 5 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #72221      +/-   ##
==========================================
- Coverage   78.09%   78.08%   -0.01%     
==========================================
  Files        6758     6758              
  Lines      301731   301732       +1     
  Branches    51925    51925              
==========================================
- Hits       235624   235617       -7     
- Misses      59761    59765       +4     
- Partials     6346     6350       +4     

Files	Coverage Δ
src/sentry/backup/imports.py	90.35% <100.00%> (ø)
src/sentry/db/models/manager/base.py	75.07% <100.00%> (+0.07%)	:arrow_up:
src/sentry/models/files/abstractfile.py	90.36% <100.00%> (ø)
src/sentry/models/files/abstractfileblob.py	86.66% <100.00%> (ø)
...sentry/organizations/services/organization/impl.py	85.44% <100.00%> (ø)

... and 5 files with indirect coverage changes

[getsantry[bot]]

This pull request has gone three weeks without activity. In another week, I will close it.

But! If you comment or otherwise update it, I will reset the clock, and if you add the label WIP, I will leave it alone unless WIP is removed ... forever!

---

"A weed is but an unloved flower." ― Ella Wheeler Wilcox 🥀

[getsantry[bot]]

This pull request has gone three weeks without activity. In another week, I will close it.

But! If you comment or otherwise update it, I will reset the clock, and if you add the label WIP, I will leave it alone unless WIP is removed ... forever!

---

"A weed is but an unloved flower." ― Ella Wheeler Wilcox 🥀

[asottile-sentry]

note that there are a number of "newly identified errors" in ignored files (~50-100) -- I'm deferring fixing those for now and will fix those as they get opted into type checking