Update mockk to 1.12.2
Update mockk to 1.12.2

Closes gh-10742

spring-projects/spring-security,spring-projects/spring-security,rwinch/spring-security,spring-projects/spring-security,rwinch/spring-security,spring-projects/spring-security,rwinch/spring-security,spring-projects/spring-security,spring-projects/spring-security,rwinch/spring-security,rwinch/spring-security,spring-projects/spring-security,rwinch/spring-security