Backdate core dep from 2.303.x to 2.289.x

Author: jglick

pom.xml

@@ -63,14 +63,14 @@
     </pluginRepositories>
     <properties>
         <changelist>999999-SNAPSHOT</changelist>
-        <jenkins.version>2.303.1</jenkins.version>
+        <jenkins.version>2.289.1</jenkins.version>
         <gitHubRepo>jenkinsci/${project.artifactId}-plugin</gitHubRepo>
     </properties>
     <dependencyManagement>
         <dependencies>
             <dependency>
                 <groupId>io.jenkins.tools.bom</groupId>
-                <artifactId>bom-2.303.x</artifactId>
+                <artifactId>bom-2.289.x</artifactId>
                 <version>1008.vb9e22885c9cf</version>
                 <scope>import</scope>
                 <type>pom</type>