ci(dependabot): apply playground exclusions to npm updates

[RYGRIT]

Follow up on #105 to clarify and fix how exclude-paths is applied in Dependabot.

The previous change added exclude-paths for the github-actions ecosystem, but that only affects workflow/action updates under .github/workflows. It does not apply to package manifests such as package.json.

Since Dependabot handles npm, yarn, and pnpm manifests under the npm ecosystem, dependency updates in playground/** could still trigger PRs, such as the recent playground/yarn axios update.

[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

Run ID: 00b44f57-bd83-4859-bc7e-b195036408f8

📥 Commits

Reviewing files that changed from the base of the PR and between 3fe3c57 and 8e510ba.

📒 Files selected for processing (1)

• .github/dependabot.yml

---

📝 Walkthrough

Walkthrough

The change adds npm dependency management configuration to Dependabot. Specifically, it introduces a new npm update entry to the existing Dependabot configuration file, set to check for updates weekly at the repository root directory. The existing github-actions configuration remains unchanged. This is a straightforward addition of 4 lines with no removals.

🚥 Pre-merge checks | ✅ 1

✅ Passed checks (1 passed)

Check name	Status	Explanation
Description check	✅ Passed	The PR description clearly explains the rationale for adding npm ecosystem exclusions to Dependabot configuration, referencing issue #105 and providing specific examples of the problem being addressed.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}