Update dependency io.quarkus:quarkus-maven-plugin to v3.21.2

Author: renovate[bot]

pom.xml

@@ -95,7 +95,7 @@
         <version.org.jsonschema2pojo>1.2.2</version.org.jsonschema2pojo>
         <version.roaster>2.28.0.Final</version.roaster>
         <version.com.sun.codemodel>2.6</version.com.sun.codemodel>
-        <quarkus.platform.version>3.2.8.Final</quarkus.platform.version>
+        <quarkus.platform.version>3.21.2</quarkus.platform.version>
 
         <!-- Plugin versions -->
         <version.maven-compiler-plugin>3.14.0</version.maven-compiler-plugin>