add prisma.config.ts to Dockerfile

Author: kentcdodds

Dockerfile

@@ -44,6 +44,7 @@ ADD other/runfile.js /app/other/runfile.js
 
 # schema doesn't change much so these will stay cached
 ADD prisma /app/prisma
+ADD prisma.config.ts /app/prisma.config.ts
 
 RUN npx prisma generate