ci: Capping the dask dependency since Dask dropped Python 3.7 support

[adchia]

What this PR does / why we need it:
See dask/dask#8572 which dropped Python 3.7 support in Dask for the last 2 releases.

Which issue(s) this PR fixes:

Fixes #

Does this PR introduce a user-facing change?:

NONE

[codecov-commenter]

Codecov Report

Merging #2342 (e67f0f6) into master (57d1343) will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2342      +/-   ##
==========================================
+ Coverage   86.39%   86.40%   +0.01%     
==========================================
  Files         116      116              
  Lines        9670     9673       +3     
==========================================
+ Hits         8354     8358       +4     
+ Misses       1316     1315       -1     

Flag	Coverage Δ
integrationtests	75.32% <ø> (-0.18%)	⬇️
unittests	58.41% <ø> (-0.02%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
sdk/python/feast/infra/online_stores/datastore.py	90.52% <0.00%> (+0.61%)	⬆️

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[achals]

Was this necessary for the same reason (python 3.7 support)?

[adchia]

ah no this was just a fix i wanted to sneak in from a previous PR because it seemed overly restrictive

[achals]

sg. stamping.

[tpvasconcelos]

@adchia @achals I think this was a typo as pip actually interprets this as click==7.*. See #2450

[achals]

/lgtm

[feast-ci-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: achals, adchia

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