bbatsov/rubocop

### Bug fixes

* [#12274](https://github.com/rubocop/rubocop/issues/12274): Fix a false positive for `Lint/Void` when `each`'s receiver is an object of `Enumerator` to which `filter` has been applied. ([@koic][])
* [#12291](https://github.com/rubocop/rubocop/issues/12291): Fix a false positive for `Metrics/ClassLength` when a class with a singleton class definition. ([@koic][])
* [#12293](https://github.com/rubocop/rubocop/issues/12293): Fix a false positive for `Style/RedundantDoubleSplatHashBraces` when using double splat hash braces with `merge` and method chain. ([@koic][])
* [#12298](https://github.com/rubocop/rubocop/issues/12298): Fix a false positive for `Style/RedundantParentheses` when using a parenthesized hash literal as the first argument in a method call without parentheses. ([@koic][])
* [#12283](https://github.com/rubocop/rubocop/pull/12283): Fix an error for `Style/SingleLineDoEndBlock` when using single line `do`...`end` with no body. ([@koic][])
* [#12312](https://github.com/rubocop/rubocop/issues/12312): Fix an incorrect autocorrect for `Style/HashSyntax` when braced hash key and value are the same and it is used in `if`...`else`. ([@koic][])
* [#12307](https://github.com/rubocop/rubocop/issues/12307): Fix an infinite loop error for `Layout/EndAlignment` when `EnforcedStyleAlignWith: variable` and using a conditional statement in a method argument on the same line and `end` with method call is not aligned. ([@koic][])
* [#11652](https://github.com/rubocop/rubocop/issues/11652): Make `--auto-gen-config` generate `inherit_from` correctly inside ERB `if`. ([@jonas054][])
* [#12310](https://github.com/rubocop/rubocop/issues/12310): Drop `base64` gem from runtime dependency. ([@koic][])
* [#12300](https://github.com/rubocop/rubocop/issues/12300): Fix an error for `Style/IdenticalConditionalBranches` when `if`...`else` with identical leading lines and using index assign. ([@koic][])
* [#12286](https://github.com/rubocop/rubocop/issues/12286): Fix false positives for `Style/RedundantDoubleSplatHashBraces` when using double splat with a hash literal enclosed in parenthesized ternary operator. ([@koic][])
* [#12279](https://github.com/rubocop/rubocop/issues/12279): Fix false positives for `Lint/EmptyConditionalBody` when missing 2nd `if` body with a comment. ([@koic][])
* [#12275](https://github.com/rubocop/rubocop/issues/12275): Fix a false positive for `Style/RedundantDoubleSplatHashBraces` when using double splat within block argument containing a hash literal in an array literal. ([@koic][])
* [#12284](https://github.com/rubocop/rubocop/issues/12284): Fix false positives for `Style/SingleArgumentDig` when using some anonymous argument syntax. ([@koic][])
* [#12301](https://github.com/rubocop/rubocop/issues/12301): Make `Style/RedundantFilterChain` aware of safe navigation operator. ([@koic][])

[@koic]: https://github.com/koic
[@jonas054]: https://github.com/jonas054