fix base image

api/Dockerfile

@@ -6,10 +6,9 @@ COPY src src
 RUN go build -o /bin/api ./main.go
 
 
-FROM debian:stable
+FROM debian:stable-slim
 
 RUN apt-get update && apt-get install -y ca-certificates
-RUN update-ca-certificates
 WORKDIR /app
 COPY --from=builder /bin/api ./api
 COPY migrations ./migrations