Allow passing multiple --url args when benchmarking instead of needing to use --file to benchmark multiple URLs

[westonruter]

I'm almost always benchmarking multiple URLs and it's annoying to have to create a file to add so that I can supply those multiple URLs via the --file arg. So this PR eliminates the need for a separate URLs file by allowing multiple URLs to be supplied by repeating the --url argument.

For example:

npm run research -- benchmark-web-vitals --number=10 --output="md" --network-conditions="broadband" \
  --url "http://localhost:10008/bison/?disable_print_script_modules_in_footer&disable_script_fetchpriority_low" \
  --url "http://localhost:10008/bison/?disable_print_script_modules_in_footer" \
  --url "http://localhost:10008/bison/?disable_script_fetchpriority_low" \
  --url http://localhost:10008/bison/

This involves the usage of the parseArgs parameter in the commander npm package, which this PR also updates to v14 from v12. (667d345)

Additional changes in this PR:

1. When all benchmark requests fail for a given URL, show an error progress message rather than a success one. (3a57abc)
2. When a network priming request fails, log an error and ensure the browser instance is closed to prevent the node process from continuing indefinitely. (90486f5)
3. Prevent logging ... immediately after logging the URL so that it isn't linkified in the terminal. (462f7a9)

[swissspidy]

Looks good, just some lint errors