Bump celery from 4.0.0 to 5.2.2

requirements.txt

@@ -4,10 +4,38 @@
 #
 #    pip-compile --output-file requirements.txt requirements.in
 #
-amqp==2.1.1               # via kombu
-billiard==3.5.0.2         # via celery
-celery==4.0.0
-kombu==4.0.0              # via celery
-pytz==2016.7              # via celery
+amqp==5.0.9
+    # via kombu
+billiard==3.6.4.0
+    # via celery
+celery==5.2.2
+    # via -r requirements.in
+click==8.0.3
+    # via
+    #   celery
+    #   click-didyoumean
+    #   click-plugins
+    #   click-repl
+click-didyoumean==0.3.0
+    # via celery
+click-plugins==1.1.1
+    # via celery
+click-repl==0.2.0
+    # via celery
+kombu==5.2.3
+    # via celery
+prompt-toolkit==3.0.24
+    # via click-repl
+pytz==2016.7
+    # via celery
 setuptools-scm==1.15.0
-vine==1.1.3               # via amqp
+    # via -r requirements.in
+six==1.16.0
+    # via click-repl
+vine==5.0.0
+    # via
+    #   amqp
+    #   celery
+    #   kombu
+wcwidth==0.2.5
+    # via prompt-toolkit