feat(batch): add `container_properties` to `job_definition` data source

[SKalt]

Description

This PR adds a top-level .container_properties attribute. .container_properties is only defined for ECS-based batch jobs, but it shares the structure of the elements of .eks_properties.pod_properties.containers and .node_properties.node_range_properties.[].container.

Relations

Closes #36263

References

Output from Acceptance Testing

% make testacc TESTS=TestAccJobDefinitionDataSourceConfig_basicARN_ContainerProperties PKG=batch

--- PASS: TestAccJobDefinitionDataSourceConfig_basicARN_ContainerProperties (13.76s)
PASS
ok      github.com/hashicorp/terraform-provider-aws/internal/service/batch      17.586s

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