Update Benchmarks section to run with latest Node.js LTS version (v16)

[micalevisk]

uvu/readme.md

Lines 115 to 117 in 86725b4

	## Benchmarks
	> via the [`/bench`](/bench) directory with Node v10.21.0

Can you run the benchmarks again with node 16.x? v10 is now too old. I don't have any dedicated VM run them by myself.

---

Thank you for this lib ❤️

[jmcdo29]

FWIW I ended up running them on my machine, and after some tinkering with some package.json's I got these results:

uvu/bench at   on  fix/before-error-reporting [ ] via  v16.13.0                                                                                                                    7m ⚑
❯ node .
~> "ava" took 567ms
    ||
    ||
    ||    ✔ sum
    ||    ✔ div
    ||    ✔ mod
    ||    ─
    ||
    ||    3 tests passed
    ||
~> "jest" took 910ms
    ||
    ||  PASS suites/jest/index.spec.js
    ||    sum
    ||      ✓ should be a function (1 ms)
    ||      ✓ should compute values correctly (1 ms)
    ||    div
    ||      ✓ should be a function
    ||      ✓ should compute values correctly (1 ms)
    ||    mod
    ||      ✓ should be a function
    ||      ✓ should compute values correctly (1 ms)
    ||
    ||  Test Suites: 1 passed, 1 total
    ||  Tests:       6 passed, 6 total
    ||  Snapshots:   0 total
    ||  Time:        0.471 s
    ||  Ran all test suites matching /suites\/jest/i.
    ||
~> "mocha" took 187ms
    ||
    ||
    ||
    ||    sum
    ||      ✓ should be a function
    ||      ✓ should compute result correctly
    ||
    ||    div
    ||      ✓ should be a function
    ||      ✓ should compute result correctly
    ||
    ||    mod
    ||      ✓ should be a function
    ||      ✓ should compute result correctly
    ||
    ||
    ||    6 passing (6ms)
    ||
    ||
~> "tape" took 97ms
    ||
    ||  TAP version 13
    ||  # sum
    ||  ok 1 should be strictly equal
    ||  ok 2 should be strictly equal
    ||  ok 3 should be strictly equal
    ||  ok 4 should be strictly equal
    ||  # div
    ||  ok 5 should be strictly equal
    ||  ok 6 should be strictly equal
    ||  ok 7 should be strictly equal
    ||  ok 8 should be strictly equal
    ||  # mod
    ||  ok 9 should be strictly equal
    ||  ok 10 should be strictly equal
    ||  ok 11 should be strictly equal
    ||  ok 12 should be strictly equal
    ||
    ||  1..12
    ||  # tests 12
    ||  # pass  12
    ||
    ||  # ok
    ||
    ||
~> "uvu" took 50ms
    ||
    ||  index.js
    ||  • • •   (3 / 3)
    ||
    ||    Total:     3
    ||    Passed:    3
    ||    Skipped:   0
    ||    Duration:  0.94ms
    ||
    ||

[iambumblehead]

As well, benchmarks should be updated to include ava4 rather than ava3. Including node's native test-runner would be great as well https://nodejs.org/api/test.html