update djangorestframework to 3.9.1

[thelostone-mc]

Description

Github reported on our repo stating current version of djangorestframework has vulnerabilities and deems an update to 3.9.1

release notes are captured here :
https://www.django-rest-framework.org/community/release-notes/#391

Installing

• Rebuilt docker image with the updated django-restframework as shown HERE

Flows Tested

• Bounty Flow (Create + Submit + Normal Payout )
• Grant Flow ( Create + Fund + Delete )
• Kudos Flow (Send)
• Tip (Send + Recieve )
• API endpoints render in browser django-rest framework without any issues as shown HERE

Note: grant fund recurring failed once but passed the second time when I tried it

closes #4504

[codecov]

Codecov Report

Merging #4488 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #4488   +/-   ##
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  Coverage   30.08%   30.08%           
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  Files         209      209           
  Lines       16850    16850           
  Branches     2267     2267           
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  Hits         5070     5070           
  Misses      11582    11582           
  Partials      198      198

---

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[codecov]

Codecov Report

Merging #4488 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #4488   +/-   ##
=======================================
  Coverage   30.41%   30.41%           
=======================================
  Files         216      216           
  Lines       17223    17223           
  Branches     2332     2332           
=======================================
  Hits         5239     5239           
  Misses      11776    11776           
  Partials      208      208

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 5a4f4e5...c83516a. Read the comment docs.

[danlipert]

How was this tested, and what version are we currently using in production? I see there are some backwards incompatibility notes in the DRF changelog

[SaptakS]

I have the same concerns as @danlipert. I was looking to upgrade this for some time, but the changelog had a lot of changes. Especially since right now we are using 3.8.2 and this is 3.9.1. That's an entire release jump.

[thelostone-mc]

Ah this should have been a WIP PR !
I haven't tested this bit out