Use renovate-config repo directly for Renovate presets

[ErisDS]

Summary

• replace package-style @tryghost: preset usage with github>TryGhost/renovate-config
• standardize shared Renovate configuration on the dedicated renovate-config repository
• remove indirection from older preset reference patterns

[coderabbitai]

Walkthrough

The Renovate configuration in package.json has been updated to change the extend target from "@TryGhost:quietJS" to "github>TryGhost/renovate-config". This is a single-line configuration modification with no functional code changes.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately summarizes the main change: updating the Renovate configuration to reference the renovate-config repository directly instead of the package-style preset.
Description check	✅ Passed	The description is directly related to the changeset, providing clear context about replacing the preset reference pattern with the dedicated renovate-config repository.
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
• Post copyable unit tests in a comment
• Commit unit tests in branch chore/use-renovate-config-directly

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@package.json`:
- Line 47: The Renovate preset reference in package.json changed from the
npm-style "@tryghost:quietJS" to "github>TryGhost/renovate-config", which loads
the repo default (quiet.json5) not the named quietJS preset; either update the
dependency preset string to the explicit named form
"github>TryGhost/renovate-config:quietJS" if you want to preserve the original
quietJS behavior, or review/compare the settings in quiet.json5 vs quietJS to
confirm they produce identical Renovate behavior and adjust package.json
accordingly (look for the preset entry value "github>TryGhost/renovate-config"
and the old "@tryghost:quietJS" reference).

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ℹ️ Review info

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 9433981 and 3c8639a.

📒 Files selected for processing (1)

• package.json