Guard against data keys being non-strings during sanitization (#4171)
Guard against data keys being non-strings during sanitization (#4171)

Fixes SENTRY-1YM
JamesMura/sentry,ifduyue/sentry,JackDanger/sentry,ifduyue/sentry,mvaled/sentry,jean/sentry,mvaled/sentry,looker/sentry,mvaled/sentry,fotinakis/sentry,gencer/sentry,looker/sentry,BuildingLink/sentry,looker/sentry,mvaled/sentry,fotinakis/sentry,BuildingLink/sentry,zenefits/sentry,zenefits/sentry,fotinakis/sentry,JamesMura/sentry,zenefits/sentry,JamesMura/sentry,beeftornado/sentry,BuildingLink/sentry,mvaled/sentry,mvaled/sentry,BuildingLink/sentry,gencer/sentry,zenefits/sentry,ifduyue/sentry,looker/sentry,JamesMura/sentry,ifduyue/sentry,ifduyue/sentry,alexm92/sentry,JamesMura/sentry,zenefits/sentry,gencer/sentry,looker/sentry,alexm92/sentry,jean/sentry,BuildingLink/sentry,beeftornado/sentry,gencer/sentry,beeftornado/sentry,gencer/sentry,JackDanger/sentry,fotinakis/sentry,alexm92/sentry,jean/sentry,jean/sentry,jean/sentry,JackDanger/sentry