Fix: guard rewriteConfiguration against non-array and nullish config values#7131

lizkenyon wants to merge 6 commits intomainShopify/cli:mainfrom

03-30-fix_guard_rewriteconfiguration_against_non-array_and_nullish_config_valuesShopify/cli:03-30-fix_guard_rewriteconfiguration_against_non-array_and_nullish_config_valuesCopy head branch name to clipboard