[BB-7012] Add github ci workflow and update requirements

[pkulkark]

Description

This PR removes the circleci workflow and replaces it with github ci. It also updates the requirements, removing python 2.7 and 3.6 support.

Supporting Information

OpenCraft Internal Jira task: BB-7012

Testing Instructions:

Verify that the new github CI tests are all passing and the xblock still functions normally.

[Agrendalath]

@pkulkark, when I run make requirements && make test locally, there is no output after Creating test database for alias 'default'.... When I stop the process, I get the following errors:

======================================================================
ERROR: Verifies that a default poll loads, that it can be voted on, and that
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/HIDDEN/xblock-poll/tests/integration/base_test.py", line 39, in setUp
    super(PollBaseTest, self).setUp()
  File "/HIDDEN/virtualenvs/tempenv-055913331076f/src/xblock-utils/xblockutils/base_test.py", line 144, in setUp
    super().setUp()
  File "/HIDDEN/virtualenvs/tempenv-055913331076f/src/xblock-utils/xblockutils/base_test.py", line 43, in setUp
    super().setUp()
  File "/HIDDEN/virtualenvs/tempenv-055913331076f/src/xblock-sdk/workbench/test/selenium_test.py", line 25, in setUp
    super().setUp()
  File "/HIDDEN/virtualenvs/tempenv-055913331076f/lib/python3.8/site-packages/bok_choy/web_app_test.py", line 121, in setUp
    self.browser = browser(tags, self.proxy)
  File "/HIDDEN/virtualenvs/tempenv-055913331076f/lib/python3.8/site-packages/bok_choy/browser.py", line 247, in browser
    browser_instance = Promise(
  File "/HIDDEN/virtualenvs/tempenv-055913331076f/lib/python3.8/site-packages/bok_choy/promise.py", line 106, in fulfill
    raise BrokenPromise(self)
bok_choy.promise.BrokenPromise: Promise not satisfied: Browser is instantiated successfully.
-------------------- >> begin captured logging << --------------------
bok_choy.browser: INFO: Using local browser: firefox [Default is firefox]
bok_choy.browser: INFO: Using default firefox profile
bok_choy.browser: INFO: Using local browser: firefox [Default is firefox]
bok_choy.browser: INFO: Using default firefox profile
bok_choy.browser: INFO: Using local browser: firefox [Default is firefox]
bok_choy.browser: INFO: Using default firefox profile
--------------------- >> end captured logging << ---------------------

Am I missing something?

[pkulkark]

@Agrendalath I couldn't figure out why, but pytest doesn't seem to work in CI. It fails with some sort of driver errors. And running tests with run_tests seems to fail with an import error related to "ctypes", on my local machine (with the same build environment). So I ended up changing the command for tox to use run_tests so that the CI tests run successfully while keeping pytest for the command make test. Does that make sense?

[Agrendalath]

⚠️ @pkulkark, as I mentioned in this comment, browser tests still do not work for me locally. We don't need to fix it here, but please create a follow-up to look into this.

Also, please see this comment.

👍

• I tested this: checked that the CI is passing
• I read through the code
• I checked for accessibility issues: n/a
• Includes documentation: n/a
• I made sure any change in configuration variables is reflected in the corresponding client's configuration-secure repository: n/a

[pkulkark]

Thanks @Agrendalath. I assume you've tried both pytest as well as the run_tests version. In any case, the error message seems related to the driver. I've created BB-7068 to look into it and fix it. Will move this along.