doc: clarifications re: min tf/provider versions

[Joe Niland (joe-niland)]

what

• Adds clarifications around how tf/provider min version constraints affect module versioning

why

• Ensure contributors understand the impact
• Ensure reviewers understand which versioning label to apply to the PR

references

• A recent PR which bumped the TF version was feat: native ECS blue/green deployment support terraform-aws-ecs-alb-service-task#277

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📝 Walkthrough

Walkthrough

The contribution FAQ now clarifies Terraform version stability, records the Terraform 1.0 release date, and documents module versioning requirements for higher minimum Terraform or provider versions.

Changes

Terraform Versioning Guidance

Layer / File(s)	Summary
Release stability guidance docs/community/contribute/faq.mdx	The FAQ updates pre-1.0 interface stability guidance and states that Terraform reached 1.0 on June 8, 2021.
Minimum version policy docs/community/contribute/faq.mdx	The FAQ explains major-version requirements when modules raise minimum Terraform or provider versions, including the exception for 0.x modules. It recommends upgrades for specific improvements.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Merge Risk: 🟡 Moderate · up to c1bcf

The documentation could cause contributors to apply the wrong module versioning guidance when minimum Terraform or provider versions increase, potentially excluding existing consumers without a major module release. Merge should wait for this clarification to be corrected.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly identifies documentation clarifications about minimum Terraform and provider versions.
Description check	✅ Passed	The description directly explains the documentation changes and their purpose for contributors and reviewers.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (1 skipped: 1 unsupported.)
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch doc/terraform-version-upgrade-guidelines

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Actionable comments posted: 1

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Inline comments:
In `@docs/community/contribute/faq.mdx`:
- Around line 103-107: Update the versioning statement beneath the impact
heading to require a major module version bump for any increase to the minimum
Terraform or provider version, not only upstream major-version bumps. Preserve
the existing exception for modules still below 1.0.

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📥 Commits

Reviewing files that changed from the base of the PR and between cd0fbe5 and c1bcf07.

📒 Files selected for processing (1)

• docs/community/contribute/faq.mdx

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