Bump to Node 22.15.1 and removes node-fetch

[JustinGrote]

Fixes #5213

PR Summary

Bumps to Node 22.15.1 and removes node-fetch. Requires VSCode v1.101 or higher for future extension releases.

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[Copilot]

Pull Request Overview

This PR updates the extension’s supported VS Code version, bumps Node and TypeScript type dependencies, and removes the now-unnecessary node-fetch package.

• Raise engines.vscode to ^1.101.0
• Drop node-fetch and its type definitions in favor of Node’s built-in fetch
• Bump @types/node to match Node v22.15.1 and update @types/vscode

Comments suppressed due to low confidence (2)

package.json:9

• Consider adding an engines.node field (e.g., "node": ">=22.15.1") to package.json to enforce the minimum Node.js runtime version required by this extension.

"vscode": "^1.101.0"

package.json:63

• Since node-fetch has been removed in favor of the native fetch API in Node.js, consider updating the README or CHANGELOG to document this change and any migration steps for consumers.

"node-fetch": "^2.7.0"

[JustinGrote]

@andyleejordan eslint got real mad at me for unchanged stuff, do we want to fix these or add a rules exclusion?