It is expensive to read and parse an YAML file. This commit optimizes
for usecases where YAML files are reused across any input by caching the
raw parsing result.
* Pin setuptools version to 69.5.1 for Python >= 3.8
A change introduced in setuptools version 70.0.0 causes tests under
test_moduleregistry.py to fail with "InvalidVersion". Pin the setuptools
version for Python >= 3.8 until this is investigated and resolved.
Change-Id: I534d7a6d9992780cd8de4f8460190caf5c3bde12
ed2c37304c