Summary

WT-10036 creates a script that handles performance test variance for a single wtperf test, but this should be generalised to work across all wtperf tests.Different tests report different metrics and sometimes multiple metrics, so the script should handle this and report all possible metrics at the end of execution.

This may require reducing the runtime of long-running wtperf tests to be able to run 10 times in a single task

As part of WT-10036, it was decided to use `bench/perf_run_py/perf_run.py` and the perf testing evergreen integration. This ticket generalises and standardises run time and max number of runs across all perf tests to allow for ease of aggregating and comparing performance stats as future work.