Update org.jetbrains.kotlin to 1.5.10

Closes gh-9982

Author: jzheaux

gradle.properties

@@ -3,7 +3,7 @@ springJavaformatVersion=0.0.28
 springBootVersion=2.4.2
 openSamlVersion=3.4.6
 version=5.5.1-SNAPSHOT
-kotlinVersion=1.5.0
+kotlinVersion=1.5.10
 org.gradle.jvmargs=-Xmx3g -XX:MaxPermSize=2048m -XX:+HeapDumpOnOutOfMemoryError
 org.gradle.parallel=true
 org.gradle.caching=true