Update mockk to 1.12.0

Closes gh-10090

dependencies/spring-security-dependencies.gradle

@@ -26,7 +26,7 @@ dependencies {
 		api "commons-codec:commons-codec:1.15"
 		api "commons-collections:commons-collections:3.2.2"
 		api "commons-logging:commons-logging:1.2"
-		api "io.mockk:mockk:1.11.0"
+		api "io.mockk:mockk:1.12.0"
 		api "io.projectreactor.tools:blockhound:1.0.6.RELEASE"
 		api "javax.annotation:jsr250-api:1.0"
 		api "javax.servlet.jsp.jstl:javax.servlet.jsp.jstl-api:1.2.2"