Switched to mitol.common.envs

[rhysyngsun]

Pre-Flight checklist

• Testing
  • Code is tested
  • Changes have been manually tested
• Settings
  • New settings are documented and present in app.json

What are the relevant tickets?

Part of #1951

What's this PR do?

Switches current usages of mitxpro.envs to mitol.common.envs

How should this be manually tested?

• Tests should pass
• The application should start and a quick smoke test works

[codecov-io]

Codecov Report

Merging #2003 (49f1a67) into master (9aacb13) will increase coverage by 0.02%.
The diff coverage is 82.92%.

@@            Coverage Diff             @@
##           master    #2003      +/-   ##
==========================================
+ Coverage   83.64%   83.66%   +0.02%     
==========================================
  Files         172      171       -1     
  Lines        9800     9699     -101     
  Branches     1028     1013      -15     
==========================================
- Hits         8197     8115      -82     
+ Misses       1364     1350      -14     
+ Partials      239      234       -5     

Impacted Files	Coverage Δ
authentication/views.py	78.35% <ø> (-0.44%)	⬇️
cms/wagtail_hooks.py	80.00% <ø> (ø)
courses/management/utils.py	54.83% <0.00%> (ø)
...aldev/seed/management/commands/delete_seed_data.py	0.00% <0.00%> (ø)
mitxpro/models.py	93.18% <ø> (ø)
sheets/coupon_assign_api.py	22.51% <0.00%> (ø)
users/serializers.py	93.13% <ø> (ø)
courses/api.py	92.70% <50.00%> (ø)
users/management/commands/retire_users.py	74.41% <50.00%> (+0.60%)	⬆️
mitxpro/celery_utils.py	58.82% <58.82%> (ø)
... and 18 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 9aacb13...49f1a67. Read the comment docs.

[gsidebo]

Looks great! 👍