Release 3.5.6

• Fix - Improving website prformance by reducing frequency of heavy queries by @vinkmeta in #3556
• Dev - chore: add multiple images functionality tests with rollout switch in… by @devbodaghe in #3554
• Update - Enable Offer Management APIs + Tweaks by @mradmeta in #3548
• Add - Add Rollout Switches for Gating Multiple Variants by @devbodaghe in #3551
• Add - Feature/multiple images for variants by @devbodaghe in #3543
• Fix - Fix product set banner reappearance after dismissal by @mshymon in #3547
• Fix - Remove unnecessary logging for product attribute mapper attributes by @devbodaghe in #3546
• Update - Deprecate FB Product Sets tab and migrate legacy product sets by @mshymon in #3534
• Add - Automated secondary QA test to compare artifact from prepare-release and marketplace version by @immadhavv in #3544
• Fix - Fix: Disable dropdown fields when 'Do not sync' is selected by @devbodaghe in #3541
• Fix - Show Facebook Product Video field for variable products by @ukilla in #3542
• Fix - Fix bug in plugin version upgrade/downgrade logic in Lifecycle by @mshymon in #3539
• Add - Run e2e tests on marketplace release of the plugin by @immadhavv in #3535
• Fix - Fix/prevent woocommerce attribute summaries in facebook short descriptions by @devbodaghe in #3531