chore: Upgrade to latest LTS core version supporting Java 8 (requires 2.346.3)

Author: gounthar

pom.xml

@@ -4,29 +4,21 @@
     <parent>
         <groupId>org.jenkins-ci.plugins</groupId>
         <artifactId>plugin</artifactId>
-        <version>4.47</version>
+        <version>4.51</version>
+        <relativePath />
     </parent>
     <groupId>io.jenkins.plugins</groupId>
     <artifactId>commons-lang-api</artifactId>
     <version>2.6.1-SNAPSHOT</version>
     <packaging>hpi</packaging>
     <properties>
         <commons-lang.version>2.6</commons-lang.version>
-        <jenkins.version>2.289.1</jenkins.version>
+        <jenkins.version>2.346.3</jenkins.version>
     </properties>
     <name>commons-lang v2.x Jenkins Api Plugin</name>
     <description>Jenkins Api Plugin to provide commons-lang:commons-lang:${commons-lang.version}.
         Will break usage upon jars being provided by core jenkins, allowing jenkins to upgrade as required.</description>
     <url>https://github.com/jenkinsci/commons-lang-api-plugin</url>
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-               <groupId>commons-lang</groupId>
-                <artifactId>commons-lang</artifactId>
-                <version>${commons-lang.version}</version>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
     <dependencies>
         <dependency>
             <groupId>commons-lang</groupId>