Removed schema validation for integration/system tests

[aadityasinha-dotcom]

What It Does
Resolves #387

How to Test

Review Checklist
I certify that I have:

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

Additional Comments

[zFernand0]

I'll open a separate PR to help with the pydoclint issues since we recently just update a couple of things 🙏

[zFernand0]

Please add the missing property 🙏

comments addressed

[codecov]

Codecov Report

❌ Patch coverage is 80.00000% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 82.11%. Comparing base (3bd6749) to head (13a2d8f).

Files with missing lines	Patch %	Lines
src/core/zowe/core_for_zowe_sdk/profile_manager.py	80.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #393      +/-   ##
==========================================
- Coverage   82.13%   82.11%   -0.02%     
==========================================
  Files          49       49              
  Lines        2916     2919       +3     
==========================================
+ Hits         2395     2397       +2     
- Misses        521      522       +1     

Flag	Coverage Δ
unittests	82.11% <80.00%> (-0.02%)	⬇️

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