Fix sqlalchemy subquery warning

[kigawas]

Closes #158

Ref: https://stackoverflow.com/a/65775282/3134333

[codecov]

Codecov Report

Merging #159 (95fbd72) into main (7ba5d02) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##              main      #159   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           21        21           
  Lines          407       407           
=========================================
  Hits           407       407           

Impacted Files	Coverage Δ
fastapi_pagination/ext/async_sqlalchemy.py	100.00% <ø> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 7ba5d02...95fbd72. Read the comment docs.

[kigawas]

query: Select should be query: Query

UPDATE:
This might need considering. Query is orm level while Select is expression level. Since we are often on expression level, Select is more semantically correct.

Maybe it's better to bump sqlalchemy to 1.4, but not in this scope.

UPDATE:
I chose to suppress the error with type: ignore.

[uriyyo]

LGTM💫