Update dependency io.jenkins.plugins:mysql-api to v9

Author: renovate[bot]

pom.xml

@@ -97,7 +97,7 @@
     <jenkins-plugin-jgiven.version>0.15.1</jenkins-plugin-jgiven.version>
     <jenkins-plugin-maven-invoker.version>2.5</jenkins-plugin-maven-invoker.version>
     <jenkins-plugin-maven.version>3.24</jenkins-plugin-maven.version>
-    <jenkins-plugin-mysql.version>8.4.0-31.va_b_5ce7933762</jenkins-plugin-mysql.version>
+    <jenkins-plugin-mysql.version>9.2.0-51.v555cd9442556</jenkins-plugin-mysql.version>
     <jenkins-plugin-postgresql.version>42.7.2-40.v76d376d65c77</jenkins-plugin-postgresql.version>
     <jenkins-plugin-tasks.version>4.53</jenkins-plugin-tasks.version>
     <jenkins-tools-bom.version>3435.v238d66a_043fb_</jenkins-tools-bom.version>