Bump org.keycloak:keycloak-services from 21.0.1 to 21.1.2 (aznamier#43)

Bumps [org.keycloak:keycloak-services](https://github.com/keycloak/keycloak) from 21.0.1 to 21.1.2.
- [Release notes](https://github.com/keycloak/keycloak/releases)
- [Commits](keycloak/keycloak@21.0.1...21.1.2)

---
updated-dependencies:
- dependency-name: org.keycloak:keycloak-services
  dependency-type: direct:production
...

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pom.xml

@@ -11,7 +11,7 @@
 
     <name>Keycloak: Event Publisher to RabbitMQ</name>
     <properties>
-    	<keycloak.version>21.0.1</keycloak.version>
+    	<keycloak.version>21.1.2</keycloak.version>
     	<jar.finalName>${project.artifactId}-${project.version}</jar.finalName>
     </properties>