chore: remove aws provider v6 upper bound

[wavemoran]

Summary

• Remove < 6.0.0 upper bound on hashicorp/aws provider to unblock v6.x adoption
• AWS provider v6.21 adds Python 3.14 Lambda runtime support
• Python 3.14 is required by Datadog Lambda Forwarder starting at v5.2.0
• Companion PR: chore: remove aws provider v6 upper bound aws-datadog-credentials#69

Changes

• src/versions.tf: ">= 4.0, < 6.0.0" → ">= 4.0"

Test plan

• CI lint passes (terraform init, no provider conflicts)
• Terratest passes in merge queue

🤖 Generated with Claude Code

Summary by CodeRabbit

• Chores
  • Updated AWS provider version constraint to support newer versions without upper-bound restrictions.

[coderabbitai]

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 2602a5c1-c83b-4c28-86aa-4c8dc7f16d7a

📥 Commits

Reviewing files that changed from the base of the PR and between c4eda50 and 3a96980.

📒 Files selected for processing (2)

• src/provider-datadog.tf
• src/versions.tf

📝 Walkthrough

Walkthrough

This change updates the Terraform AWS provider version constraint in src/versions.tf by removing the upper-bound restriction. The constraint is relaxed from >= 4.0, < 6.0.0 to >= 4.0, allowing compatibility with provider versions 6.0.0 and above.

Changes

Cohort / File(s)	Summary
Terraform Provider Configuration src/versions.tf	Removed upper-bound version constraint on AWS provider, changing requirement from >= 4.0, < 6.0.0 to >= 4.0

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐰 The bounds have been lifted, how free!
No ceiling to stop us at version three,
AWS grows and our constraints unwind,
A wider path for all humankind.

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main change: removing the AWS provider v6 upper bound constraint from the version requirement.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[mergify]

Thanks @wavemoran for creating this pull request!

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[RoseSecurity]

/terratest

[github-actions]

There are no real tests for this component. So we set terratest statuses to successful execution without running any tests

[goruha]

/terratest

[github-actions]

These changes were released in v2.0.0.