chore: Refactor `airflow-dags` module to use Pydantic #469

Job	Run time
Get Modules	4s
Run unit tests for module mlflow/mlflow-image	3m 54s
Run unit tests for module mlflow/mlflow-fargate	2m 20s
Run unit tests for module fmops/bedrock-finetuning	27s
Run unit tests for module fmops/sagemaker-jumpstart-fm-endpoint	40s
Run unit tests for module fmops/sagemaker-hugging-face-endpoint	34s
Run unit tests for module fmops/qna-rag	2m 13s
Run unit tests for module eks/ray-on-eks	2m 13s
Run unit tests for module sagemaker/sagemaker-notebook	2m 12s
Run unit tests for module sagemaker/sagemaker-model-monitoring	2m 32s
Run unit tests for module sagemaker/sagemaker-templates-service-catalog	2m 32s
Run unit tests for module sagemaker/sagemaker-model-package-promote-pipeline	2m 17s
Run unit tests for module sagemaker/sagemaker-studio	2m 56s
Run unit tests for module sagemaker/sagemaker-model-package-group	2m 20s
Run unit tests for module sagemaker/sagemaker-endpoint	2m 9s
Run unit tests for module sagemaker/sagemaker-custom-kernel	3m 48s
Run unit tests for module examples/event-bus	2m 10s
Run unit tests for module examples/airflow-dags	2m 16s
	37m 37s

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