EMR Cluster Flatten Instance Group Name

[mbfrahry]

This PR addresses #7278 and was caused by not flattening the name with the instance group Set.

Pre fix

--- FAIL: TestAccAWSEMRCluster_instance_group_name (433.90s)

Post Fix

--- PASS: TestAccAWSEMRCluster_security_config (449.25s)
--- PASS: TestAccAWSEMRCluster_Kerberos_ClusterDedicatedKdc (533.29s)
--- PASS: TestAccAWSEMRCluster_instance_group (546.73s)
--- PASS: TestAccAWSEMRCluster_instance_group_update (548.66s)
--- PASS: TestAccAWSEMRCluster_terminationProtected (558.77s)
--- PASS: TestAccAWSEMRCluster_basic (567.99s)
--- PASS: TestAccAWSEMRCluster_bootstrap_ordering (588.08s)
--- PASS: TestAccAWSEMRCluster_additionalInfo (588.83s)
--- PASS: TestAccAWSEMRCluster_instance_group_EBSVolumeType_st1 (616.62s)
--- PASS: TestAccAWSEMRCluster_updateAutoScalingPolicy (620.66s)
--- PASS: TestAccAWSEMRCluster_Step_Multiple (620.73s)
--- PASS: TestAccAWSEMRCluster_Step_Basic (625.99s)
--- PASS: TestAccAWSEMRCluster_instance_group_name (638.32s)
--- PASS: TestAccAWSEMRCluster_configurationsJson (639.06s)
--- PASS: TestAccAWSEMRCluster_keepJob (641.59s)
--- PASS: TestAccAWSEMRCluster_s3Logging (652.75s)
--- PASS: TestAccAWSEMRCluster_custom_ami_id (663.43s)
--- PASS: TestAccAWSEMRCluster_tags (794.90s)
--- PASS: TestAccAWSEMRCluster_root_volume_size (998.26s)
--- PASS: TestAccAWSEMRCluster_visibleToAllUsers (1043.95s)

[bflad]

LGTM 🚀

[bflad]

This has been released in version 1.57.0 of the AWS provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

[ghost]

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