Fix strong drum rolls being counted for double the combo in legacy scoring attributes

[bdach]

This is the root cause of a multi-system failure that ultimately causes ppy/osu-web#11697. It appears that my theory I described in that issue is correct, although this root failure is a little more specific than I initially suspected - only maps with strong drum rolls are affected, rather than maps with any drum rolls at all.

Around 6k beatmaps in total are affected by this. List available here: https://gist.github.com/bdach/a719beed292ef0632dc8d002eb9b274c

Caution

Intended for @peppy first and foremost:
This change affects total score for all scores imported from stable which were set on the affected beatmaps in the new database tables. Therefore, this pull should be followed up with:

• recomputation of scoring attributes for osu!taiko,
• verification of all imported taiko scores via osu-queue-score-statistics (I'd ask to hold with doing that until verification can correct maximum_statistics, which also are affected by this failure and cause further failures down the stack, as described in the issue thread - working on that as I write this see Add capability to verify maximum statistics of scores osu-queue-score-statistics#306).

I ran a sheet locally and it looks as I'd expect it to, but will run one through the workflow here for transparency.

run all ranked
run from 90634 non-ranked

[bdach]

!diffcalc
RULESET=taiko
GENERATORS=score

[github-actions]

Target: #30917
Spreadsheet: https://docs.google.com/spreadsheets/d/1uEANHvZdqRZ946JdRhlwfQ8v98H8GCoz6fI2PVOzVY8/edit