opencensus 0.7.10 depends == on opencensus-context 0.1.1 (not 0.1.2)

[allanlw]

Steps to reproduce.

python3 -m venv test_opencensus
pip install --no-cache-dir opencensus opencensus-context
pip check

What is the expected behavior?
No errors with pip check

What is the actual behavior?
Output:

ERROR: opencensus 0.7.10 has requirement opencensus-context==0.1.1, but you'll have opencensus-context 0.1.2 which is incompatible.

Additional context.
opencensus 0.7.10 was released 3 weeks ago: https://github.com/census-instrumentation/opencensus-python/releases/tag/v0.7.10

Metadata in the wheel from pypi pins the version directly:

grep 'opencensus-context' ./test_opencensus/lib/python3.8/site-packages/opencensus-0.7.10.dist-info/METADATA
Requires-Dist: opencensus-context (==0.1.1)

[allanlw]

This was resolved with #933.