Update dependency org.codehaus.mojo:buildnumber-maven-plugin to v3

Author: renovatebot-confluentinc[bot]

pom.xml

@@ -83,7 +83,7 @@
         <maven-site-plugin.version>3.9.0</maven-site-plugin.version>
         <maven-project-info-reports-plugin.version>3.1.1</maven-project-info-reports-plugin.version>
         <mbknor-jackson-jsonschema.version>1.0.39</mbknor-jackson-jsonschema.version>
-        <buildnumber-plugin.version>1.4</buildnumber-plugin.version>
+        <buildnumber-plugin.version>3.2.1</buildnumber-plugin.version>
         <mockito.version>4.6.1</mockito.version>
         <mockito-all.version>1.10.19</mockito-all.version>
         <os-maven-plugin.version>1.7.0</os-maven-plugin.version>