service/iam: Handle read-after-create eventual consistency in IAM Group resources

[bflad]

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Reference: #16796

Output from acceptance testing in AWS Commercial:

--- PASS: TestAccAWSGroupMembership_basic (83.42s)
--- PASS: TestAccAWSGroupMembership_paginatedUserList (326.03s)

--- PASS: TestAccAWSIAMGroup_basic (24.05s)
--- PASS: TestAccAWSIAMGroup_nameChange (22.97s)

--- PASS: TestAccAWSIAMGroupPolicy_basic (26.33s)
--- PASS: TestAccAWSIAMGroupPolicy_disappears (14.86s)
--- PASS: TestAccAWSIAMGroupPolicy_generatedName (26.51s)
--- PASS: TestAccAWSIAMGroupPolicy_namePrefix (26.68s)

--- PASS: TestAccAWSIAMGroupPolicyAttachment_basic (26.13s)

Output from acceptance testing in AWS GovCloud (US):

--- PASS: TestAccAWSGroupMembership_basic (53.90s)
--- PASS: TestAccAWSGroupMembership_paginatedUserList (240.95s)

--- PASS: TestAccAWSIAMGroup_basic (32.01s)
--- PASS: TestAccAWSIAMGroup_nameChange (29.80s)

--- PASS: TestAccAWSIAMGroupPolicy_basic (36.62s)
--- PASS: TestAccAWSIAMGroupPolicy_disappears (18.84s)
--- PASS: TestAccAWSIAMGroupPolicy_generatedName (37.66s)
--- PASS: TestAccAWSIAMGroupPolicy_namePrefix (37.69s)

--- PASS: TestAccAWSIAMGroupPolicyAttachment_basic (36.80s)

[YakDriver]

Looks underbar! 🎉

Acceptance tests GovCloud:

--- PASS: TestAccAWSIAMGroupPolicy_disappears (18.53s)
--- PASS: TestAccAWSIAMGroup_nameChange (28.97s)
--- PASS: TestAccAWSIAMGroup_basic (30.93s)
--- PASS: TestAccAWSIAMGroupPolicyAttachment_basic (35.58s)
--- PASS: TestAccAWSIAMGroupPolicy_basic (35.82s)
--- PASS: TestAccAWSIAMGroupPolicy_namePrefix (36.98s)
--- PASS: TestAccAWSIAMGroupPolicy_generatedName (37.04s)
--- PASS: TestAccAWSGroupMembership_basic (102.25s)
--- PASS: TestAccAWSGroupMembership_paginatedUserList (213.16s)

Acceptance tests commercial:

--- PASS: TestAccAWSIAMGroupPolicy_disappears (13.52s)
--- PASS: TestAccAWSIAMGroup_nameChange (20.76s)
--- PASS: TestAccAWSIAMGroup_basic (23.11s)
--- PASS: TestAccAWSIAMGroupPolicyAttachment_basic (24.35s)
--- PASS: TestAccAWSIAMGroupPolicy_basic (24.90s)
--- PASS: TestAccAWSIAMGroupPolicy_generatedName (26.11s)
--- PASS: TestAccAWSIAMGroupPolicy_namePrefix (26.12s)
--- PASS: TestAccAWSGroupMembership_basic (132.42s)
--- PASS: TestAccAWSGroupMembership_paginatedUserList (187.69s)

[ghost]

This has been released in version 3.36.0 of the Terraform AWS provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template for triage. Thanks!

[ghost]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.

If you feel this issue should be reopened, we encourage creating a new issue linking back to this one for added context. Thanks!