chore: DEVPLAT-7373 fix Node.js 20 deprecated GitHub Actions

[kristianmills]

Summary

Upgrades GitHub Actions that use the deprecated Node.js 20 runtime to Node.js 24 compatible versions.

Node.js 20 actions will be forced to run on Node.js 24 by default starting June 2nd, 2026. See the GitHub deprecation notice.

Changes made:

• cycjimmy/semantic-release-action@v2 → cycjimmy/semantic-release-action@v5
• hashicorp/setup-terraform@v1 → hashicorp/setup-terraform@v4

🤖 Generated with Claude Code

DEVPLAT-7373

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Note

Low Risk
Low risk CI-only change; main risk is workflow breakage if the new action major versions change defaults or inputs.

Overview
Updates the CI workflow to use newer GitHub Action major versions: hashicorp/setup-terraform from v1 to v4, and cycjimmy/semantic-release-action from v2 to v5.

Bumps the configured semantic_version used by the release job from 19 to 24 to match the updated action.

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