chore(n8n): bump n8n to 2.29.7

[mberlofa]

Closes #699.

Summary

• Bump n8n from 2.28.3 to 2.29.7.
• Update the main n8n image tag, values schema default, hardcoded unittest expectations, and README upgrade notes.
• Keep the external task runner image repository on docker.io/n8nio/runners, with the default runner tag still following image.tag.

Upstream Evidence

• GitHub release: https://github.com/n8n-io/n8n/releases/tag/n8n%402.29.7
• Release status verified with GitHub CLI: not draft, not pre-release, published 2026-07-07T06:29:37Z.
• The issue target 2.29.6 is marked as pre-release upstream; this PR uses 2.29.7, the latest stable release that supersedes it.
• make image-verify IMAGE=docker.io/n8nio/n8n:2.29.7 passed with linux/amd64 and linux/arm64 manifests.
• make image-verify IMAGE=docker.io/n8nio/runners:2.29.7 passed with linux/amd64 and linux/arm64 manifests.
• 2.29.7 fixes Code node failures when workflows contain AI tools, versioned action generation for nodes using flat Action fields, and Salesforce document upload/JWT auth error reporting.

Site Sync

• Site PR: docs(n8n): sync 2.29.7 default site#380

Validation

• make image-verify IMAGE=docker.io/n8nio/n8n:2.29.7
• make image-verify IMAGE=docker.io/n8nio/runners:2.29.7
• make deps-check CHART=n8n
• helm unittest charts/n8n passed: 9 suites, 78 tests.
• make standards-check CHART=n8n
• node scripts/charts/template-standards-check.js --chart n8n
• make validate-chart CHART=n8n passed fully: 20 layers, including k3d behavioral validation for default plus all CI values scenarios.
• make site-sync-check CHART=n8n
• make release-check REPO=charts
• make attribution-check REPO=charts

Summary by CodeRabbit

• New Features

  • Updated the chart and default image references to version 2.29.7 for the main app and related runner components.

• Documentation

  • Refreshed the Helm chart README to reflect the latest release version and upgrade guidance.
  • Added notes highlighting recent fixes included in this release.

• Tests

  • Updated deployment test expectations to match the new container image versions.

[github-actions]

Standards Check (GR-079) — PASS

Every changed chart fully passes standards-check.

[github-actions]

🟢 Security Scan: n8n

Framework	Score
MITRE + NSA + SOC2	87.289566%

✅ Security posture acceptable.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 380fb660-92e8-4367-9042-78d5e2bfc6e7

📥 Commits

Reviewing files that changed from the base of the PR and between 66a35d5 and 66df272.

📒 Files selected for processing (6)

• charts/n8n/Chart.yaml
• charts/n8n/README.md
• charts/n8n/tests/deployment_test.yaml
• charts/n8n/tests/worker_deployment_test.yaml
• charts/n8n/values.schema.json
• charts/n8n/values.yaml

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📝 Walkthrough

Walkthrough

The n8n Helm chart's container image tag is bumped from 2.28.3/2.26.8 to 2.29.7 across Chart.yaml, values.yaml, and values.schema.json. Corresponding unit test assertions in deployment and worker deployment tests are updated to match, and README.md documentation is revised with upgrade notes for the new release.

Changes

n8n Image Version Bump

Layer / File(s)	Summary
Chart metadata and default values update charts/n8n/Chart.yaml, charts/n8n/values.yaml, charts/n8n/values.schema.json	appVersion, changelog annotation, default image tag, and schema default are all updated to 2.29.7.
Unit test image tag assertions charts/n8n/tests/deployment_test.yaml, charts/n8n/tests/worker_deployment_test.yaml	Expected container image tags for the main n8n container and external task runner sidecar are updated to 2.29.7.
README documentation update charts/n8n/README.md	Default image tag reference and Upgrade Notes are updated, adding details on 2.29.7 fixes for Code node AI tool workflows, versioned action generation, and Salesforce/JWT error handling.

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

Related Issues

• #699: chore(n8n): upstream image update available (2.28.3 → 2.29.6)

Suggested labels: dependencies, chart-update

Suggested reviewers: helmforgedev-maintainers

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🐰 A hop, a skip, a version bump,
From 2.28 to 2.29's plump,
Runners and n8n in sync anew,
Tests confirm the tags ring true,
Changelog whispers fixes fine—
Upgrade notes now say it's time! 🎉

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: bumping n8n to 2.29.7.
Linked Issues check	✅ Passed	The PR updates the chart image, appVersion, schema, tests, and README as requested for the n8n version bump.
Out of Scope Changes check	✅ Passed	The changes stay focused on the n8n version bump and related documentation and test updates.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/n8n-2.29.7

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