chore(release): 6.0.0 [skip ci]

# [6.0.0](v5.0.8...v6.0.0) (2023-07-30)

### Bug Fixes

* add sanity checks to type immutablity override settings ([d3ce5b0](d3ce5b0))
* further updates for v6 ([71ecdb5](71ecdb5))
* **immutable-data:** rework logic, it should work now ([9644994](9644994)), closes [#692](#692)
* migrate code for [@typescript-eslint](https://github.com/typescript-eslint) v6 ([5c6b1a2](5c6b1a2))
* replace `ignorePattern` option with `ignoreIdentifierPattern` and `ignoreCodePattern` ([48d8eba](48d8eba)), closes [#467](#467)

### Build System

* increase minimum supported TypeScript version to 4.3.5 ([aefe6b2](aefe6b2))

### Features

* **functional-parameters:** add option to ignore getters and setters ([9c89b9e](9c89b9e))
* **immutable-data:** add new option `ignoreNonConstDeclarations` ([ecde24a](ecde24a)), closes [#691](#691)
* **no-expression-statements:** add option to ignore self returning functions ([894fb91](894fb91)), closes [#611](#611)
* **prefer-immutable-types:** use suggestions instead of a fixer by default ([#598](#598)) ([3fb9028](3fb9028))
* remove `assumeTypes` option ([6be5862](6be5862))

### BREAKING CHANGES

* replace `ignorePattern` option with `ignoreIdentifierPattern` and `ignoreCodePattern`
* increase minimum supported TypeScript version to 4.3.5
* remove `assumeTypes` option
* **prefer-immutable-types:** The fixer config no longer inherits as many options as before; be sure to be
explicit in your configs.