qa/crontab: update priority for tentacle upgrade command

The current prio (100) results in this error:
```
teuthology.exceptions.ScheduleFailError: Scheduling failed: Unable to schedule 244 jobs with priority 100.
```

I tested the prio on 150 on my teuthology setup, and this passes with the amount of jobs.

Signed-off-by: Laura Flores <[email protected]>

Author: Laura Flores

qa/crontab/teuthology-cronjobs

@@ -114,7 +114,7 @@ TEUTHOLOGY_SUITE_ARGS="--non-interactive --newest=100 --ceph-repo=https://git.ce
 ### upgrade runs for tentacle release
 ###### on smithi
 
-08 01 * * 3        $CW $SS      1 --ceph tentacle --suite upgrade -p 100
+08 01 * * 3        $CW $SS      1 --ceph tentacle --suite upgrade -p 150
 
 ### upgrade runs for squid release
 ###### on smithi