CTM-178: Refresh Proxy Testing Code and Certs

[LizBaldo]

Jira ticket: https://broadworkbench.atlassian.net/browse/CTM-178

Summary of changes

What

• Regenerates testing certs - should now last until 2035

Why

• Certs expired on Nov 12, explaining the consistent unit test failures

Testing these changes

What to test

Who tested and where

• This change is covered by automated tests
  • NB: Rerun automation tests on this PR by commenting jenkins retest or jenkins multi-test.
• I validated this change
• Primary reviewer validated this change
• I validated this change in the dev environment

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.75%. Comparing base (81bad1a) to head (59f8caa).
⚠️ Report is 1 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff              @@
##           develop    #4887       +/-   ##
============================================
+ Coverage         0   72.75%   +72.75%     
============================================
  Files            0      142      +142     
  Lines            0    11836    +11836     
  Branches         0      951      +951     
============================================
+ Hits             0     8611     +8611     
- Misses           0     3225     +3225     

see 142 files with indirect coverage changes

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