Reduce scope of thread dumping action so it works on Windows

See gh-39761

.github/actions/print-jvm-thread-dumps/action.yml

@@ -7,8 +7,6 @@ runs:
       run: |
         for java_pid in $(jps -q -J-XX:+PerfDisableSharedMem); do
           echo "------------------------ pid $java_pid ------------------------"
-          cat /proc/$java_pid/cmdline | xargs -0 echo
           jcmd $java_pid Thread.print -l
-          jcmd $java_pid GC.heap_info
         done
         exit 0