fix: Prevent Integration Attribute Override with NSNull values#25

BrandonStalnaker merged 2 commits intodevelopmentmparticle-integrations/mparticle-apple-integration-adobe:developmentfrom

fix/SQDSDKS-7653-Prevent-Override-of-Integration-Attributes-with-NSNullmparticle-integrations/mparticle-apple-integration-adobe:fix/SQDSDKS-7653-Prevent-Override-of-Integration-Attributes-with-NSNullCopy head branch name to clipboard