Update the flask-socketio config to play more nicely:

* Reverts run commands to what they previously were
* Addresses some outstanding linting/formatting
* Accounts for proper config initialization (CORS, Redis)
* Updates dependencies and pulls in latest changes from main

Signed-off-by: Carlo Costino <carlo.costino@gsa.gov>

app/config.py

@@ -179,6 +179,7 @@ class Config(object):
     S3_RESOURCE = session.resource("s3", config=AWS_CLIENT_CONFIG)
 
     CELERY = {
+        "broker_connection_retry_on_startup": True,
         "worker_max_tasks_per_child": 500,
         "task_ignore_result": True,
         "result_persistent": False,