[benchmarks] update try_benchmark.sh script to include print_metrics
[benchmarks] update try_benchmark.sh script to include print_metrics

This configuration is used by some of our benchmarking bots
but it wasn't tested explicitly here.

Change-Id: I913b54863c10ededeff179b7cd1adee1577470a6
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/242960
Reviewed-by: Jonas Termansen <092ec58085ae5e368bc39d18752740ff81a2d09c@google.com>
Commit-Queue: Jonas Termansen <092ec58085ae5e368bc39d18752740ff81a2d09c@google.com>

dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk