nub package manager now detected

Patch Changes

• #14661 414ce87 Thanks @dependabot! - Update dependencies of "create-cloudflare"

  The following dependency versions have been updated:

  Dependency	From	To
  create-react-router	8.1.0	8.2.0

• #14499 8cd805d Thanks @colinhacks! - Detect the nub package manager

  C3 resolves the invoking package manager with which-pm-runs, which already returns nub, but detectPackageManager had no nub case in its switch, so it fell through to the npm default and produced npm commands. detectPackageManager now maps nub to its nub/nubx executables, and @cloudflare/cli-shared-helpers's package-install helpers accept nub as a package manager.