updated lints reported by docker ci

Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:3.17.1 as build
+FROM alpine:3.17.1 AS build
 LABEL maintainer="wfnintr@null.net"
 
 RUN apk upgrade --update-cache --available && apk add --update openssl
@@ -9,7 +9,7 @@ RUN wget https://github.com/epi052/feroxbuster/releases/latest/download/x86_64-l
     && chmod +x /tmp/feroxbuster \
     && wget https://raw.githubusercontent.com/danielmiessler/SecLists/master/Discovery/Web-Content/raft-medium-directories.txt -O /tmp/raft-medium-directories.txt
 
-from alpine:3.17.1 as release
+FROM alpine:3.17.1 AS release
 COPY --from=build /tmp/raft-medium-directories.txt /usr/share/seclists/Discovery/Web-Content/raft-medium-directories.txt
 COPY --from=build /tmp/feroxbuster /usr/local/bin/feroxbuster