CAMEL-23226: Bump JLine to 4.0.8 for picocli argument completion

JLine 4.0.8 includes jline/jline3#1708 which fixes PicocliCommandRegistry
to use picocli's AutoComplete for proper tab completion of options, option
values, positional parameters, and nested subcommands.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: gnodet

parent/pom.xml

@@ -324,7 +324,7 @@
         <jgroups-raft-leveldbjni-version>1.8</jgroups-raft-leveldbjni-version>
         <jgroups-raft-mapdb-version>1.0.8</jgroups-raft-mapdb-version>
         <jira-rest-client-api-version>6.0.2</jira-rest-client-api-version>
-        <jline-version>4.0.7</jline-version>
+        <jline-version>4.0.8</jline-version>
         <libthrift-version>0.22.0</libthrift-version>
         <jodatime2-version>2.14.1</jodatime2-version>
         <jolokia-version>2.5.1</jolokia-version>