bench(flatlock-cmp) use console.time to measure parse performance

[indexzero]

Uses flatlock.collect instead of flatlock.fromPath in bin/flatlock-cmp.js to measure the parse timing in isolation from flatlockSet.add(spec)

Sample output:

⏱  collect [...]-pnpm-lock.yaml: 18.113ms
⊃  [...]-pnpm-lock.yaml
   count: flatlock=1355 js-yaml=1349
   sets:  SUPERSET (+6 reachable deps)
   note:  flatlock's reachability analysis found transitive deps pnpm omits

⏱  collect [...]/package-lock.json: 3.593ms
✓  [...]/package-lock.json (4 workspaces excluded)
   count: flatlock=1434 @npmcli/arborist=1434
   sets:  equinumerous