Update spring cloud open service broker to 3.5.1

Author: Fredrich Ombico

build.gradle

@@ -24,7 +24,7 @@ buildscript {
 		checkstyleVersion = "8.37"
 		commonsTextVersion = "1.9"
 		immutablesVersion = "2.9.0"
-		openServiceBrokerVersion = "3.5.0"
+		openServiceBrokerVersion = "3.5.1"
 		pmdVersion = "6.29.0"
 		springBootVersion = "2.6.6"
 		springCredhubVersion = "2.2.0"