feat: Added check to verify pip.txt installation

[Jawayria]

This check verifies that we are installing pip immediately after upgrading it.
pip should be installed after the upgrade to ensure that new pip version is compatible with installed pip-tools version.

JIRA: https://2u-internal.atlassian.net/browse/BOM-3402

[codecov]

Codecov Report

Merging #271 (8530940) into master (5f976de) will increase coverage by 0.21%.
The diff coverage is 100.00%.

❗ Current head 8530940 differs from pull request most recent head 580a661. Consider uploading reports for the commit 580a661 to get more accurate results

@@            Coverage Diff             @@
##           master     #271      +/-   ##
==========================================
+ Coverage   82.47%   82.68%   +0.21%     
==========================================
  Files          21       21              
  Lines        1124     1138      +14     
==========================================
+ Hits          927      941      +14     
  Misses        197      197              

Flag	Coverage Δ
unittests	82.68% <100.00%> (+0.21%)	⬆️

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Impacted Files	Coverage Δ
repo_health/__init__.py	64.28% <100.00%> (ø)
repo_health/check_makefile.py	93.93% <100.00%> (+4.46%)	⬆️

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[jmbowman]

This looks like a good start; can we also check that the updated pip-tools.txt is also reinstalled? I'd really also like a check that pip.txt is correctly utilized in any code that initializes an environment (like make requirements and tox.ini), but we probably need to manually make sure we can do that correctly in a few places before establishing a check for it.

[jmbowman]

I think we want to use the old, known-working pip and pip-tools conversation to update both pip.txt and pip-tools.txt, then reinstall packages from both updated files to try the new combination. So the pip.txt installation should be after the pip-tools.txt recompilation. The check above should also be updated accordingly.

[Jawayria]

@jmbowman I've updated the check, can you please have a look?

[jmbowman]

Looks good! We probably have a lot of repos that will need work to make this pass, even the edx-cookiecutters repo gets it wrong.

[Jawayria]

Looks good! We probably have a lot of repos that will need work to make this pass, even the edx-cookiecutters repo gets it wrong.

Yes you're right