Update requirements txt

[omgoshjosh]

i wanted to run flask locally, not in a docker container. i ran py -m venv venv then i ran pip install -r requirements.txt repeatedly while updating packages that failed to install until i saw * Running on http://0.0.0.0:8000/ (Press CTRL+C to quit), at which point i made this PR.

the genesis of the work was trying to fix a busted patreon check during local development by doing a null check that.

[codecov[bot]]

Codecov Report

Merging #439 into master will decrease coverage by 0.03%. The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master     #439      +/-   ##
==========================================
- Coverage   61.43%   61.40%   -0.04%     
==========================================
  Files          91       91              
  Lines        5904     5907       +3     
  Branches      844      845       +1     
==========================================
  Hits         3627     3627              
- Misses       2143     2146       +3     
  Partials      134      134              

Flag	Coverage Δ
#integration	50.66% <0.00%> (-0.03%)	:arrow_down:
#server	59.67% <0.00%> (-0.04%)	:arrow_down:

Impacted Files	Coverage Δ
...eprints/spa_api/service_layers/homepage/patreon.py	38.70% <0.00%> (-4.15%)	:arrow_down:

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