Merge pull request #170 from jenkinsci/dependabot/maven/org.jetbrains.kotlin-kotlin-bom-1.9.0

Bump kotlin-bom from 1.8.21 to 1.9.0

Author: jtnord

pom.xml

@@ -35,7 +35,7 @@
       if updating these ensure the used transitive deps that have their version managed are updated as direct dependencies and any unused ones are removed.
     -->
     <okio.version>3.3.0</okio.version>
-    <kotlin.version>1.8.21</kotlin.version>
+    <kotlin.version>1.9.0</kotlin.version>
   </properties>
 
   <dependencyManagement>