v0.73.0

Feat: Add Support for Origin Groups (Failover Origins) @korenyoni (#174)

what

• Add Support for Origin Groups (failover origins)
• Add tests for var.s3_origins and var.custom_origins
• Add functionality such that if s3_origin_config.origin_access_identity in var.s3_origins is null or an empty string, translate it to the origin_access_identity used by the origin created by the module.

why

• Certain CloudFront distributions require origins to be backed by failover origins. This can only be done using Origin Groups, which prior to this PR is not supported by the module.
• The variables var.s3_origins and var.custom_origins were not tested using the test suite.

references

• https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/cloudfront_distribution#origin-group-arguments