Release 4.0.0

What's Changed

• Drop support for Python 3.7

• Add support for PyPy3.10

• Use fixture for attrs with dict and remove comment by @Jeroendevr in #170

• Feat/faster macos runners by @vinitkumar in #171

• chore(deps): bump tornado from 6.1 to 6.3.2 in /docs by @dependabot in #175

• chore(deps): bump requests from 2.26.0 to 2.31.0 in /docs by @dependabot in #173

• fix: update python by @vinitkumar in #177

• Fix/upgrade python by @vinitkumar in #178

• Fix/upgrade python by @vinitkumar in #179

• fix/upgrade python by @vinitkumar in #180

• fix: use Github actions for release now by @vinitkumar in #181

Full Changelog: v3.21.0...v4.0.0