V2 sys test fix port

[jace-roell]

What It Does
port system test fixes from V3.

GitHub issue# and link:

#2336
#2353
#2354

Review Checklist
I certify that I have:

• tested my changes
• added/updated automated tests
• updated the changelog
• followed the contribution guidelines

[codecov]

Codecov Report

Attention: Patch coverage is 76.92308% with 3 lines in your changes missing coverage. Please review.

Project coverage is 91.25%. Comparing base (fca0224) to head (bf7edfb).
Report is 29 commits behind head on zowe-v2-lts.

Files with missing lines	Patch %	Lines
...perative/src/rest/src/client/AbstractRestClient.ts	71.42%	2 Missing ⚠️
...ackages/imperative/src/operations/src/Operation.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##           zowe-v2-lts    #2373   +/-   ##
============================================
  Coverage        91.25%   91.25%           
============================================
  Files              638      638           
  Lines            19150    19162   +12     
  Branches          3944     3947    +3     
============================================
+ Hits             17475    17486   +11     
- Misses            1674     1675    +1     
  Partials             1        1           

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[awharn]

Everything works great! Thanks for backporting these, @jace-roell!

[traeok]

LGTM, thanks Jace for porting this over!

[zFernand0]

LGTM! 😋

From a little earlier this morning!

Test Suites: 138 passed, 138 total
Tests:       3 skipped, 1201 passed, 1204 total
Snapshots:   100 passed, 100 total
Time:        2814.569 s