chore: cleanup JestEnvironment types

[SimenB]

Summary

Played around with it in #7985, and these were the changes I had to make to allow us to do class NodeEnvironment extends JestEnvironment and get proper typings

Test plan

Green CI

[codecov-io]

Codecov Report

Merging #7988 into master will not change coverage.
The diff coverage is 25%.

@@           Coverage Diff           @@
##           master    #7988   +/-   ##
=======================================
  Coverage   64.54%   64.54%           
=======================================
  Files         257      257           
  Lines       10076    10076           
  Branches     1586     1587    +1     
=======================================
  Hits         6504     6504           
  Misses       3230     3230           
  Partials      342      342

Impacted Files	Coverage Δ
...circus/src/legacy-code-todo-rewrite/jestAdapter.ts	0% <0%> (ø)	⬆️
packages/jest-runner/src/runTest.ts	2.59% <0%> (ø)	⬆️
packages/jest-runtime/src/index.ts	68.98% <40%> (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 419661f...e66b668. Read the comment docs.

[github-actions]

This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.
Please note this issue tracker is not a help forum. We recommend using StackOverflow or our discord channel for questions.