Spring Rename test method to clarify the purpose related to SPR-6063

This PR renames the test method spr6063 to propertyDescriptorShouldMatchWithCachedDescriptors to better reflect the intent of the test. The original method name was tied to the issue number, but it did not convey the specific purpose of the test.

The updated method name now clearly indicates that the test is designed to verify the consistency between the results of BeanUtils.getPropertyDescriptor() and BeanUtils.getPropertyDescriptors().

This change was made following the discussion and issue raised in SPR-6063, ensuring that the test method name is descriptive and aligns with best practices.

Comment From: sdeleuze

Merged and polished to keep the reference to the GitHub issue, thanks.