Hyphen keys are converted to camelCase with Caffeine Cache

### Expected Behavior

When a Map with a String key that contains hyphen is cached (for instance `"an-example"`), when accessing through the cache, the key should be the same (`"an-example"`).

### Actual Behaviour

When a Map with a String key that contains hyphen is cached (for instance `"an-example"`), when accessing through the cache, the key is converted to camelCase (`"anExample"`).

### Steps To Reproduce

Download and run https://github.com/dcalap/micronaut-cache-bug

Perform a GET http://localhost:8080/cacheBug

The first time you will see `an-id-with-hypen`

Perform again a GET http://localhost:8080/cacheBug

The second time you will see `anIdWithHypen`

### Environment Information

macOS, OpenJDK Runtime Environment Temurin-17.0.8.1+1 (build 17.0.8.1+1)
Micronaut 4.6.2 with Java 17, Gradle, and Micronaut Caffeine Cache

### Example Application

https://github.com/dcalap/micronaut-cache-bug

### Version

4.6.2

Start by running the linked micronaut-cache-bug example with Micronaut 4.6.2 and Java 17, then issue GET requests to /cacheBug and compare the first and second responses. Trace the cache path used by the Caffeine cache to identify where the hyphenated map key changes. Done means repeated requests preserve "an-id-with-hypen" rather than returning "anIdWithHypen".

Written by the indexing model from the issue text.