Upgrade script does not bump the lower bound for `jupyterlab`

[jtpio]

As noticed in #7577, it seems the upgrade script currently does not bump the lower bound for the jupyterlab dependency.

This may be an issue with the pre-releases only:

notebook/buildutils/src/upgrade-lab-dependencies.ts

Lines 55 to 60 in 3e125b1

	function getVersionRange(version: IVersion): string {
	const baseVersion = `${version.major}.${version.minor}.${version.patch}${
	version.preRelease ?? ''
	}`;
	return `>=${baseVersion},<${version.major}.${version.minor + 1}`;
	}