🐛 fix(test): unpin pytest 6.0.2, which cannot run on Python 3.10

[joaquingx]

Problem

requirements/test.txt resolved pytest==6.0.2 (Sept 2020). Collecting any test module under Python 3.10 crashes in pytest's assertion rewriter:

TypeError: required field "lineno" missing from alias

test.in did not constrain pytest at all, so the lockfile was free to resolve a version predating Python 3.10 support (added in pytest 6.2.5).

Change

Add a floor in test.in and recompile with pip-compile. Only the test-runner packages move:

	before	after
pytest	6.0.2	7.4.4
pytest-django	3.10.0	4.14.0

django==3.1.14 and everything else in base.txt are untouched. Two files changed.

Verification

• estela-api's own suite is unchanged: 22 failed / 59 passed both before and after. Those failures are environmental and predate this change — 21 need a live MongoDB (ServerSelectionTimeoutError on 127.0.0.1:27017), and tests/api/test_docs.py compares against a stale committed swagger spec. (tests/core/test_kubernetes.py is excluded from both runs; it needs an in-cluster kube config.)
• The bitmaker_billing external-app suite goes from "cannot collect" to 49 passed. That was the motivation: bitmaker-cloud-billing is adding CI that runs its tests against an estela checkout, and it currently has to override the pytest pin itself.

🤖 Generated with Claude Code