chore: Update pnpm and workflows deps

[stefashkaa]

Summary

I've upgraded pnpm inself and workflow dependency for demo svgs.

Problem / Motivation

To use the latest dev tools

Type Of Change

• Bug fix (non-breaking)
• Feature (non-breaking)
• Breaking change
• Docs
• Refactor / perf
• CI / build / tooling

Testing

• N/A

Visual Diff (if applicable)

• N/A

Checklist

• I ran pnpm lint
• I ran pnpm typecheck
• I ran pnpm generate:dev
• I updated docs and .env.example when needed
• I added visual proof for rendering changes
• I verified action behavior if action.yml or src/action.ts changed

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[Copilot]

Pull request overview

This PR updates the repository’s tooling pins by bumping the declared pnpm version and hardening the GitHub Actions workflow dependency reference for actions/checkout.

Changes:

• Bump packageManager from pnpm@11.6.0 to pnpm@11.7.0.
• Update the workflow to pin actions/checkout to a specific commit SHA for v6.0.3.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
package.json	Updates the declared pnpm version used by Corepack/package manager enforcement.
.github/workflows/generate-crt-contributions.yml	Pins actions/checkout to the exact commit for v6.0.3 to improve supply-chain safety and reproducibility.

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