[CLIENT-3160] Add TLS tests in new_tests/

[juliannguyen4]

In run-ee-server composite action:

1. Generate self-signed CA certificate (public key) and private "decrypting" key
2. Build the server image with TLS enabled. In Dockerfile, server will use the same CA certificate (public key) + CA private key from step 1 to sign (encrypt) and create its own server certificate
3. Configure tests to confirm the server's identity by checking that the CA certificate from step 1 did sign the server certificate from step 2a

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.91%. Comparing base (d8eff6e) to head (a83e119).
Report is 2 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev     #692      +/-   ##
==========================================
+ Coverage   80.79%   80.91%   +0.12%     
==========================================
  Files         102      102              
  Lines       15173    15175       +2     
==========================================
+ Hits        12259    12279      +20     
+ Misses       2914     2896      -18     

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