dockerfile update

Dockerfile

@@ -1,7 +1,7 @@
-FROM alpine:3.12
+FROM alpine:3.14
 
 RUN apk update \
- && apk add coreutils grep nmap-ncat socat jq bash file curl
+ && apk add sed xxd grep findutils file nmap-ncat socat jq bash file curl
 
 WORKDIR /app
 COPY . .