Randomized TSDS tests: rate test and fixes to gauge tests (#133190)

* first rate test and fixes to gauge tests * working on tests... * [CI] Auto commit changes from spotless * fixups * fixups * adding tolerances for failures * increase tolerances * fix dumb test * fixed algos to make tolerance 1% * no tolerance for failed individual groups/windows * description for test * fixups --------- Co-authored-by: elasticsearchmachine <infra-root+elasticsearchmachine@elastic.co>

Author: pabloem