feat: add https.cacert

[snitin315]

• This is a bugfix
• This is a feature
• This is a code refactor
• This is a test update
• This is a docs update
• This is a metadata update

For Bugs and Features; did you add new tests?

Updated existing tests.

Motivation / Use-Case

Refers #2996

Breaking Changes

BREAKING CHANGE: https.ca was removed

Additional Info

After this, I will finish #3241

[codecov]

Codecov Report

Merging #3240 (94b8fc5) into master (e10c2a0) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #3240   +/-   ##
=======================================
  Coverage   95.36%   95.36%           
=======================================
  Files          34       34           
  Lines        1231     1231           
  Branches      346      346           
=======================================
  Hits         1174     1174           
  Misses         51       51           
  Partials        6        6           

Impacted Files	Coverage Δ
lib/Server.js	95.14% <100.00%> (ø)

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