v1.1.0

fix: error: No more than 1 "s3_origin_config" blocks are allowed @Eyjafjallajokull (#359)

## what

• Fixed No more than 1 s3_origin_config blocks are allowed error when using multiple S3 origins with origin access identity enabled
• Changed for_each from iterating over var.s3_origins to using [1] to create a single s3_origin_config block

why

• AWS CloudFront only allows one s3_origin_config block per origin
• The previous implementation incorrectly created multiple blocks when multiple S3 origins were configured

references

fixes #325

to reproduce error

1. in examples/complete/main.tf#L102 replace origin_access_control with origin_access_identity
   https://github.com/Eyjafjallajokull/terraform-aws-cloudfront-s3-cdn/blob/96703043867c986ff3fc1550448118111a9f5659/examples/complete/main.tf#L102
2. terraform plan fails with the above error.