bbatsov/rubocop

### Bug fixes

* [#8782](https://github.com/rubocop/rubocop/issues/8782): Fix incorrect autocorrection for `Style/TernaryParentheses` with `defined?`. ([@dvandersluis][])
* [#8867](https://github.com/rubocop/rubocop/issues/8867): Rework `Lint/RedundantSafeNavigation` to be more safe. ([@fatkodima][])
* [#8864](https://github.com/rubocop/rubocop/issues/8864): Fix false positive for `Style/RedundantBegin` with a postfix `while` or `until`. ([@dvandersluis][])
* [#8869](https://github.com/rubocop/rubocop/issues/8869): Fix a false positive for `Style/RedundantBegin` when using `begin` for or assignment and method call. ([@koic][])
* [#8862](https://github.com/rubocop/rubocop/issues/8862): Fix an error for `Lint/AmbiguousRegexpLiteral` when using regexp without method calls in nested structure. ([@koic][])
* [#8872](https://github.com/rubocop/rubocop/issues/8872): Fix an error for `Metrics/ClassLength` when multiple assignments to constants. ([@koic][])
* [#8871](https://github.com/rubocop/rubocop/issues/8871): Fix a false positive for `Style/RedundantBegin` when using `begin` for method argument or part of conditions. ([@koic][])
* [#8875](https://github.com/rubocop/rubocop/issues/8875): Fix an incorrect auto-correct for `Style/ClassEqualityComparison` when comparing class name. ([@koic][])
* [#8880](https://github.com/rubocop/rubocop/issues/8880): Fix an error for `Style/ClassLength` when overlapping constant assignments. ([@koic][])

[@dvandersluis]: https://github.com/dvandersluis
[@fatkodima]: https://github.com/fatkodima
[@koic]: https://github.com/koic