`@CacheEvict` & CompileStatic errors for key closures

### Issue description

The following code worked in Grails 6 on a class annotated with `@CompileStatic`

@CacheEvict(value = "apiTokens", key = { token })
void deleteByToken(String token) {

In Grails 7, this fails with:

[Static type checking] - The variable [token] is undeclared.

Start by reproducing the Grails 7 CompileStatic error with the @CacheEvict example in the issue, then compare the same case against Grails 6. Trace how the key closure is handled for @CacheEvict and verify that the example compiles while still using token for eviction.

Written by the indexing model from the issue text.