[Test] Make `test_essential_features` more resilient #18426

Job	Run time
AWS Batch CLI Tests (ubuntu-latest, Python 3.7 AWS Batch CLI Tests)	34s
Dependency Check	35s
AWS Batch CLI Tests (ubuntu-latest, Python 3.8 AWS Batch CLI Tests)	25s
CLI Tests (ubuntu-latest, Python 3.7 Tests)	3m 44s
AWS Batch CLI Tests (ubuntu-latest, Python 3.9 AWS Batch CLI Tests)	23s
CLI Tests (ubuntu-latest, Python 3.8 Tests)	3m 49s
AWS Batch CLI Tests (ubuntu-latest, Python 3.10 AWS Batch CLI Tests)	29s
CLI Tests (ubuntu-latest, Python 3.9 Tests)	3m 37s
AWS Batch CLI Tests (ubuntu-latest, Python 3.11 AWS Batch CLI Tests)	23s
CLI Tests (ubuntu-latest, Python 3.10 Tests)	3m 21s
Shellcheck	5s
AWS Batch CLI Tests (ubuntu-latest, Python 3.12 AWS Batch CLI Tests)	30s
CLI Tests (ubuntu-latest, Python 3.11 Tests)	2m 45s
AWS Batch CLI Tests (ubuntu-latest, Python 3.10 AWS Batch CLI Tests Coverage)	36s
CLI Tests (ubuntu-latest, Python 3.12 Tests)	3m 5s
AWS Batch CLI Tests (ubuntu-latest, Code Checks AWS Batch CLI)	57s
CLI Tests (ubuntu-latest, Python 3.10 Tests Coverage)	5m 26s
CLI Tests (ubuntu-latest, Code Checks)	42s
API Model Validation	1m 26s
CLI Tests (ubuntu-latest, CLI CloudFormation Templates Checks)	47s
CLI Tests (ubuntu-latest, API CloudFormation Templates Checks)	24s
External SlurmDBD Template Validation	32s
CLI Tests (ubuntu-latest, Integration Tests Config Checks)	40s
	35m 15s

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