Remove wait for shutting-down instances #1778

Job	Run time
API Docker Tests	52s
Dependency Check	58s
CLI Tests (ubuntu-latest, Python 3.7 Tests)	3m 42s
AWS Batch CLI Tests (ubuntu-latest, Python 3.7 AWS Batch CLI Tests)	27s
CLI Tests (ubuntu-latest, Python 3.8 Tests)	3m 58s
Shellcheck	5s
AWS Batch CLI Tests (ubuntu-latest, Python 3.8 AWS Batch CLI Tests)	26s
API Model Validation	1m 42s
CLI Tests (ubuntu-latest, Python 3.9 Tests)	3m 42s
AWS Batch CLI Tests (ubuntu-latest, Python 3.9 AWS Batch CLI Tests)	29s
CLI Tests (ubuntu-latest, Python 3.10 Tests)	3m 26s
AWS Batch CLI Tests (ubuntu-latest, Python 3.10 AWS Batch CLI Tests)	39s
CLI Tests (ubuntu-latest, Python 3.11 Tests)	2m 59s
AWS Batch CLI Tests (ubuntu-latest, Python 3.11 AWS Batch CLI Tests)	28s
CLI Tests (ubuntu-latest, Python 3.12 Tests)	3m 33s
CLI Tests (ubuntu-latest, Python 3.10 Tests Coverage)	5m 29s
AWS Batch CLI Tests (ubuntu-latest, Python 3.12 AWS Batch CLI Tests)	41s
AWS Batch CLI Tests (ubuntu-latest, Python 3.10 AWS Batch CLI Tests Coverage)	32s
CLI Tests (ubuntu-latest, Code Checks)	1m 35s
AWS Batch CLI Tests (ubuntu-latest, Code Checks AWS Batch CLI)	49s
CLI Tests (ubuntu-latest, CLI CloudFormation Templates Checks)	59s
CLI Tests (ubuntu-latest, API CloudFormation Templates Checks)	32s
CLI Tests (ubuntu-latest, Integration Tests Config Checks)	32s
	38m 35s

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