Fix copypasta error
Fix copypasta error

Change getRepositories to getSuggests in setSuggests block.

wikimedia/composer-merge-plugin,codeandcountry/composer-merge-plugin,thewilkybarkid/composer-merge-plugin,legoktm/composer-merge-plugin,Priyank57/composer-merge-plugin,webflo/composer-merge-plugin,bd808/composer-merge-plugin