fix(docker): Alpine repositories

Author: leocavalcante

Dockerfile

@@ -1,6 +1,5 @@
 ARG ALPINE=3.20
 FROM alpine:${ALPINE}
-ENV ALPINE=$ALPINE
 
 ARG PHP
 ENV PHP_VERSION=$PHP
@@ -12,8 +11,7 @@ ARG WITHOUT_WATCHR
 ENV WITHOUT_WATCHR=$WITHOUT_WATCHR
 
 COPY rootfs /
-RUN sed -i "s/latest-stable/v${ALPINE}/g" /etc/apk/repositories && \
-    apk update && apk upgrade && apk add --no-cache \
+RUN apk update && apk upgrade && apk add --no-cache \
         git \
         docker-cli \
         php${PHP}-cli \