Spring Security Update mockk to 1.12.5

Comment From: marcusdacoregio

There are some errors when updating this dependency:

> Task :spring-security-config:compileTestKotlin FAILED
e: /Users/me/.gradle/caches/modules-2/files-2.1/io.mockk/mockk-common/1.12.5/80e3efb2a8e561818d3205bdeb25d3ac4b54b0b0/mockk-common-1.12.5.jar!/META-INF/mockk-common.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.7.1, expected version is 1.5.1.
e: /Users/me/.gradle/caches/modules-2/files-2.1/io.mockk/mockk-dsl/1.12.5/1db590c6b4a7b723f3eb31e0763480f3c3373706/mockk-dsl-1.12.5.jar!/META-INF/mockk-dsl.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.7.1, expected version is 1.5.1.

Maybe related to this https://github.com/mockk/mockk/pull/850