Fix PY3 incompatible division

bump edx-enterprise version to 3.17.33

AA-614: Add initial effort estimation block transformer

Previous version was 2.2.10.

Pulls in fix to deprecated import path, which
will soon be unsupported.

Incidentally pulls in:
* Make drag-and-drop indexable.
* Drop Python 2 support from drag-and-drop-v2.

This reverts commit 0517603b.

This was masking a LabXchange error by blowing up with:
"Stack trace builtins:AttributeError: 'NoneType' object has no attribute 'status_code'"

* doc: Add a decision around rate-limiting in edx-platform

While looking into whether a change to how we handle RateLimitExceptions
would impact logins, I learned the following about the current state of
how rate limiting works in our login flows.  Based on what I learned, I captured
the current state as well as decisions on how we should rate limit in the future.

[TSD] add annotations for courseware and dashboard search feature flag

update thresholds after IM security fixes 9

Mergeback PR from private to public.

feat: Allow cert allowlist mgmt cmd to use db args

Incident Management Security Fixes 12

Incident Management Security Fixes 11

Disable xsslint

The management command to generate certificates for users on a course's
allowlist (formerly whitelist) now allows for database arguments to
allow it to be called outside of a manual shell.

bumping enterprise version to 3.17.30

AA-664: add JwtAuthentication to course home api

refactor Replace django-ratelimit-backend with django-ratelimit