fix(model): validate virtual attribute (#9947)

[tsasaki609]

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Description of change

fix #9947
In the case of processing that is not bulk, we use rawAttribute, so we should do the same in this case.
https://github.com/sequelize/sequelize/blob/master/lib/model.js#L3627

[codecov]

Codecov Report

Merging #10085 into master will not change coverage.
The diff coverage is 100%.

@@           Coverage Diff           @@
##           master   #10085   +/-   ##
=======================================
  Coverage    96.3%    96.3%           
=======================================
  Files          63       63           
  Lines        9413     9413           
=======================================
  Hits         9065     9065           
  Misses        348      348

Impacted Files	Coverage Δ
lib/model.js	96.68% <100%> (ø)	⬆️

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[sushantdhiman]

Thanks @tsasaki609