Pin Node version to major

[mao-sz]

Because

It'd be better to have more control over what version of Node.js the bot uses, and manually update to a newer LTS only after testing.

This PR

• Pins required Node version to ^24.10 (we use features made stable or introduced from 24.10
• Prevents npm from installing package versions if they're not compatible with the pinned major version
• Adds script for updating the version pin

Issue

Closes #680

Additional Information

Depending on what gets merged first between this and #869, I'll update the contributing guide/repo wiki accordingly for version update instructions.

Update script can be run like

NEW_NODE_VERSION=^26 npm run pin-node

Pull Request Requirements

• I have thoroughly read and understand The Odin Project Contributing Guide
• The title of this PR follows the location of change: brief description of change format, e.g. Callbacks command: Update verbiage
• The Because section summarizes the reason for this PR
• The This PR section has a bullet point list describing the changes in this PR
• If this PR addresses an open issue, it is linked in the Issue section
• If this PR adds new features or functionality, I have added new tests
• If applicable, I have ensured all tests related to any command files included in this PR pass, and/or all snapshots are up to date