Update rule content and descriptions to LaYC format.
[S4275: Getters and setters should access the expected
fields](https://sonarsource.github.io/rspec/#/rspec/S4275)
## Review
A dedicated reviewer checked the rule description successfully for:
- [ ] logical errors and incorrect information
- [ ] information gaps and missing content
- [ ] text style and tone
- [ ] PR summary and labels follow [the
guidelines](https://github.com/SonarSource/rspec/#to-modify-an-existing-rule)
