refactor(chore): remove Node js 20 support

[Sourav-kashyap]

remove Node js 20 support

BREAKING CHANGE:
yes

GH-296

Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Fixes # (issue)

Checklist:

• Performed a self-review of my own code
• npm test passes on your machine

Build:

Test:

[sonarqubecloud]

SonarQube reviewer guide

Summary: Drops support for Node.js 20, updates minimum Node version requirement to 22, and applies comprehensive dependency updates across the project.

Review Focus: The minimum Node.js version bump from 20 to 22 is a breaking change that requires careful consideration. Verify this aligns with project strategy and that all @loopback/* dependencies have been updated consistently. The extensive dependency updates (especially Babel, commitlint, and proxy agents) may introduce behavioral changes—pay close attention to any major version bumps and their migration guides.

Start review at: package.json. This is where the explicit version constraint change occurs (node: ">=22"), and it's critical to ensure this breaking change is intentional and properly coordinated with the rest of the codebase updates.

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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

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