ci: add Dependabot config for GitHub Actions#56
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Every workflow pins actions by commit SHA (ci.yml, checkov.yml, trivy-iac.yml) but nothing bumps those pins forward, so security fixes and version updates go unnoticed. Add a weekly github-actions Dependabot config to open update PRs automatically. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Me6WuTZnmXPco4uRymKKAs
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Summary
ci.yml,checkov.yml,trivy-iac.yml) pins GitHub Actions by commit SHA, which is the right posture — but there's currently no automated mechanism to bump those pins forward. Security fixes and version updates toactions/checkout,hashicorp/setup-terraform,terraform-linters/setup-tflint,github/codeql-action, etc. would only be caught by someone manually noticing..github/dependabot.ymlfor thegithub-actionsecosystem, scanning weekly and grouping all action bumps into a single PR to keep noise down.modules/— doesn't touch any Terraform, soterraform validate/tflint/checkov/trivyare unaffected.Test plan
.github/dependabot.ymlis valid YAML (verified locally)Generated by Claude Code