feat(java): Require Jenkins core 2.479.3 and Java 17. (#246)

pom.xml

@@ -5,7 +5,7 @@
         <groupId>org.jenkins-ci.plugins</groupId>
         <artifactId>plugin</artifactId>
         <version>5.7</version>
-        <relativePath />
+        <relativePath/>
     </parent>
     <groupId>io.jenkins.plugins</groupId>
     <artifactId>openshift-k8s-credentials</artifactId>
@@ -20,8 +20,9 @@
     <properties>
         <changelist>999999-SNAPSHOT</changelist>
         <gitHubRepo>jenkinsci/openshift-k8s-credentials-plugin</gitHubRepo>
+        <!-- https://www.jenkins.io/doc/developer/plugin-development/choosing-jenkins-baseline/ -->
         <jenkins.baseline>2.479</jenkins.baseline>
-        <jenkins.version>${jenkins.baseline}.1</jenkins.version>
+        <jenkins.version>${jenkins.baseline}.3</jenkins.version>
     </properties>
     <name>Openshift Token Credentials - Kubernetes Integration</name>
     <description>Integrates Openshift token credentials with the k8s credentials provider</description>