Patch main runner to print v8-perf compatible output

- Print all scores
- Print all times
- Include line item name on ever metric output

Sources:
- https://chrome-internal-review.googlesource.com/c/v8/v8-perf/+/7397479

Bug: 358290763
Change-Id: I6dd1fcd2537996568b6a579eceff9d02af8bc44d
Reviewed-on: https://chromium-review.googlesource.com/c/external/github.com/WebKit/JetStream/+/6662678
Reviewed-by: Daniel Lehmann <dlehmann@chromium.org>