Update dependency io.projectreactor.netty:reactor-netty-core to v1.2.0 (

#827)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

build.gradle

@@ -355,7 +355,7 @@ dependencies {
   implementation group: 'com.github.hmcts', name: 'core-case-data-store-client', version: '4.9.2'
   implementation group: 'com.azure', name: 'azure-messaging-servicebus', version: '7.17.6'
   implementation group: 'io.projectreactor.netty', name: 'reactor-netty-http', version: '1.2.0'
-  implementation group: 'io.projectreactor.netty', name: 'reactor-netty-core', version: '1.1.23'
+  implementation group: 'io.projectreactor.netty', name: 'reactor-netty-core', version: '1.2.0'
 
   implementation group: 'org.apache.tomcat.embed', name: 'tomcat-embed-core', version: versions.tomcat
   implementation group: 'org.apache.tomcat.embed', name: 'tomcat-embed-websocket', version: versions.tomcat