Bump mypy from 0.961 to 1.3.0

[dependabot[bot]]

Bumps mypy from 0.961 to 1.3.0.

Commits

• 9df39ab set version to 1.3.0
• c1464a9 Revert "Fix disappearing errors when re-running dmypy check (#14835)" (#15179)
• d887e9c Fix performance in union subtyping (#15104)
• 320b883 Typeshed cherry-pick: stdlib/xml: fix return types for toxml/toprettyxml meth...
• 6a68049 Fix sys.platform when cross-compiling with emscripten (#14888)
• 3d9661c Fix bounded self types in override incompatibility checking (#15045)
• 0799a8a [mypyc] Fix unions of bools and ints (#15066)
• 4276308 (🎁) update black to 23.3.0 (#15059)
• 1449366 Allow objects matching SupportsKeysAndGetItem to be unpacked (#14990)
• 69c774e Sync typeshed (#15055)
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)