adds isclose checks to flaky geotests

[kjaymiller]

Pull Request check-list

Please make sure to review and check all of these items:

• Do tests and lints pass with this change?
• Do the CI tests pass with this change (enable it first in your forked repo and wait for the github action build to finish)?
• Is the new or changed code fully tested?
• [NA] Is a documentation update included (if this change modifies existing APIs, or introduces new ones)?
• [NA] Is there an example added to the examples folder (if applicable)?

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Description of change

• add geochecks to conftest
• uses isclose to check float values
• renamed check to assert_geo_is_close
• update_assert_is_geo_tests
• format with black

resolves #39

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.06%. Comparing base (67eb77c) to head (3b2c6b3).

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #61      +/-   ##
==========================================
+ Coverage   75.02%   75.06%   +0.03%     
==========================================
  Files         132      132              
  Lines       34341    34378      +37     
==========================================
+ Hits        25766    25805      +39     
+ Misses       8575     8573       -2     

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[aiven-sal]

Hi Jay! Thanks for the PR.
I don't know if you noticed, but there are some issues with this PR:
https://github.com/valkey-io/valkey-py/actions/runs/10186469705/job/28210444146?pr=61#step:4:125
You should also re-base it to pick up the latest changes.

[aiven-sal]

Hi! Thanks for fixing the linters.
Could you squash/fixup all of you commits in the first one?

Otherwise the PR looks great!

[aiven-sal]

Thanks!

[aiven-sal]

@mkmkme @ahmedsobeh my approval for this PR does not work, because I touched it. We need someone else's review.