feat(flags): Add statsig audit-log provider

[cmanallen]

Still work in progress. Will need a formal integration with statig I believe. There's no path that I can find to registering an audit-log hook. Also need to fix the typing issues if statsig is going to return lists of dicts.

Ref: https://github.com/getsentry/team-replay/issues/490

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@                Coverage Diff                 @@
##           mz/ld-provider   #79637      +/-   ##
==================================================
- Coverage           78.39%   78.28%   -0.12%     
==================================================
  Files                7131     7126       -5     
  Lines              314930   313125    -1805     
  Branches            43275    51082    +7807     
==================================================
- Hits               246903   245132    -1771     
+ Misses              61717    61609     -108     
- Partials             6310     6384      +74     

[getsantry]

This issue 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 remove the label Waiting for: Community, I will leave it alone ... forever!

---

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

[getsantry]

This issue 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 remove the label Waiting for: Community, I will leave it alone ... forever!

---

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