React Router Template Dep Bump

Use this when updating React Router dependencies in react-router-templates.

Run these commands from the repo root.

1. Confirm the current pins

rg -n '(@react-router/[^@\" ]+@|react-router@|"(?:react-router|@react-router/[^"]+)"\s*:)' . \
  --glob '!**/node_modules/**' \
  --glob '!pnpm-lock.yaml' \
  --glob '!deno.lock'