Update dependency com.github.hmcts:service-auth-provider-java-client to v5

Author: renovate[bot]

build.gradle

@@ -328,7 +328,7 @@ dependencies {
 
   implementation group: 'com.github.hmcts.java-logging', name: 'logging', version: versions.reformLogging
 
-  implementation group: 'com.github.hmcts', name: 'service-auth-provider-java-client', version: '3.1.4'
+  implementation group: 'com.github.hmcts', name: 'service-auth-provider-java-client', version: '5.1.1'
   implementation group: 'com.github.hmcts', name: 'core-case-data-store-client', version: '4.9.2'
 
   implementation group: 'org.apache.logging.log4j', name: 'log4j-api', version: '2.20.0'