Test JGit 7.0.0-m2 pre-release with Java 17 build

JGit 7.0.0 requires Java 17.  Jenkins 2.463 requires Java 17.

Use the plugin bill of materials from 2.462.x because it is the closest
we have to 2.463.  The plugin is expected to work with any release 2.463
or later.

pom.xml

@@ -58,15 +58,19 @@
   </scm>
 
   <properties>
-    <revision>5.0.1</revision>
+    <revision>6.0.0</revision>
     <changelist>-SNAPSHOT</changelist>
     <!-- Character set tests fail unless file.encoding is set -->
     <argLine>-Dfile.encoding=${project.build.sourceEncoding}</argLine>
     <gitHubRepo>jenkinsci/${project.artifactId}-plugin</gitHubRepo>
     <!-- https://www.jenkins.io/doc/developer/plugin-development/choosing-jenkins-baseline/ -->
-    <jenkins.baseline>2.440</jenkins.baseline>
-    <jenkins.version>${jenkins.baseline}.3</jenkins.version>
-    <jgit.version>6.10.0.202406032230-r</jgit.version>
+    <jenkins.baseline>2.462</jenkins.baseline>
+    <!-- <jenkins.version>${jenkins.baseline}.3</jenkins.version> -->
+    <!-- TODO Replace with the standard jenkins.baseline references after LTS requires Java 17  -->
+    <jenkins.version>2.463</jenkins.version>
+    <jgit.version>7.0.0.202407311305-m2</jgit.version>
+    <!-- TODO JENKINS-73339 until in parent POM -->
+    <maven.compiler.release>17</maven.compiler.release>
     <spotbugs.effort>Max</spotbugs.effort>
     <spotbugs.threshold>Low</spotbugs.threshold>
     <spotless.check.skip>false</spotless.check.skip>