Add Flower to track a state of celery tasks and terminate tasks to.

Updated celery to 5.3.6 version
Enable an autoscaling feature for celery workers (from 4 to 12) in dependency of requested tasks to be done

PRODX-37490

Change-Id: I9d410de5fadd2fe254ee2a18a67f56f5a28305a2
diff --git a/testrail_bot/requirements.txt b/testrail_bot/requirements.txt
index d0c566a..727ea37 100644
--- a/testrail_bot/requirements.txt
+++ b/testrail_bot/requirements.txt
@@ -1,13 +1,14 @@
-celery==4.4.6
+celery==5.3.6
 Django==4.2.7
 django-bootstrap-v5==1.0.11
 psycopg2-binary==2.8.5
 redis==3.5.3
 testrail-api==1.8.0
 uWSGI==2.0.19.1
-python-jenkins==1.7.0
-matplotlib==3.3.2
 retry==0.9.2
-psycopg2==2.9.9
 parse==1.19.1
 rpdb==0.1.6
+flower==2.0.1
+click==8.1.7
+python-jenkins==1.7.0
+matplotlib==3.3.2