fix: #3635025 ProductVariationAttributeMapper::prepareAttributes() is...

Jonathan Sacksickrequested to merge
issue/commerce-3635025:3635025--productvariationattributemapperprepareattributes-is into 3.x

fix: #3635025 ProductVariationAttributeMapper::prepareAttributes() is quadratic in the number of attributes and throws for mixed variation types

By: jsacksick

Closes #3635025

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