Include prisma.config.ts in runtime image for migrate deploy

Dockerfile

@@ -18,6 +18,7 @@ COPY --from=builder /app/node_modules ./node_modules
 COPY --from=builder /app/.next ./.next
 COPY --from=builder /app/public ./public
 COPY --from=builder /app/prisma ./prisma
+COPY --from=builder /app/prisma.config.ts ./prisma.config.ts
 COPY --from=builder /app/next.config.mjs ./next.config.mjs
 
 EXPOSE 3000