dev: add devenv and frozen requirements

[joshuarli]

this adds devenv and also frozen requirements

we should think about how we want to standardize on freezing requirements btw cc @bukzor

[joshuarli]

do we... want to drop 3.10? i feel like everyone is on 3.11 or newer

[hubertdeng123]

do we... want to drop 3.10? i feel like everyone is on 3.11 or newer

The reason we kept 3.10 around had to do with pypi:
getsentry/pypi#990 (comment)

[hubertdeng123]

Thanks for putting this up!

Looks like CI is failing since coverage==7.6.4 isn't available for python 3.10 which is a bit annoying

[hubertdeng123]

should version be pinned here?

[hubertdeng123]

version is pinned in the frozen requirements, so not the biggest deal

[bukzor]

Only because I was dingged: https://www.notion.so/sentry/Python-Standards-1d68b10e4b5d80cfa519c2fbb01215f8?pvs=4#1d68b10e4b5d80819f38cf2889338493

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.67%. Comparing base (7545cbf) to head (baf8f8e).
Report is 1 commits behind head on main.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #255   +/-   ##
=======================================
  Coverage   94.67%   94.67%           
=======================================
  Files          26       26           
  Lines        2141     2141           
=======================================
  Hits         2027     2027           
  Misses        114      114           

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