Pin Faker to Prevent Asteroid Crash

There's some sort of issue with version 5.0.2 of Faker which updates a
lot of code to use the pathlib library instead of os utils. This causes
the sys.path_importer_cache to get filled with PosixPath objects instead
of strings as it's keys, which causes an asteroid crash.

For now, we can just pin Faker to a version that still works until the
upstream issue is resolved.

Author: jpulec

setup.py

@@ -19,6 +19,7 @@
     install_requires=[
         'pylint-plugin-utils>=0.5',
         'pylint>=2.0',
+        'Faker==5.0.1',
     ],
     extras_require={
         'with_django': ['Django'],