chore!: Improve permissions check on instances endpoints

[matheusbsilva137]

Proposed changes (including videos or screenshots)

• Improve permissions check on instances endpoints by using the permissionsRequired property.

Issue(s)

CORE-341

Steps to test or reproduce

Further comments

The intention for this PR is to improve code readability and make unauthorized erros more standardized. No side effects are expected. We're considering this a breaking change since unauthorized errors are being changed to follow the same standard when possible.

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Latest commit: f802127

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[dionisio-bot]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 55.54%. Comparing base (68fee68) to head (f802127).
Report is 3 commits behind head on release-7.0.0.

Additional details and impacted files

@@                Coverage Diff                @@
##           release-7.0.0   #32334      +/-   ##
=================================================
- Coverage          55.56%   55.54%   -0.02%     
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  Files               2333     2333              
  Lines              51578    51578              
  Branches           10526    10526              
=================================================
- Hits               28657    28650       -7     
- Misses             20403    20410       +7     
  Partials            2518     2518              

Flag	Coverage Δ
e2e	54.79% <ø> (-0.03%)	⬇️
unit	75.37% <ø> (ø)

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