fix: AttributeError os.exists is not valid python attribute. #689

Job	Run time
Collect workflow inputs	7s
Max TF pre-commit	1m 45s
Min TF pre-commit (.)	21s
Min TF pre-commit (./modules/alias)	17s
Min TF pre-commit (./modules/docker-build)	24s
Min TF pre-commit (./modules/deploy)	19s
Min TF pre-commit (./examples/alias)	28s
Min TF pre-commit (./examples/simple)	24s
Min TF pre-commit (./examples/with-vpc-s3-endpoint)	26s
Min TF pre-commit (./examples/event-source-mapping)	19s
Min TF pre-commit (./examples/multiple-regions)	18s
Min TF pre-commit (./examples/complete)	24s
Min TF pre-commit (./examples/with-efs)	22s
Min TF pre-commit (./examples/build-package)	23s
Min TF pre-commit (./examples/with-vpc)	23s
Min TF pre-commit (./examples/triggers)	25s
Min TF pre-commit (./examples/async)	21s
Min TF pre-commit (./examples/code-signing)	22s
Min TF pre-commit (./examples/deploy)	26s
Min TF pre-commit (./examples/simple-cicd)	24s
Min TF pre-commit (./examples/container-image)	30s
	9m 8s

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