bump squid to 6.6

Bumps alpine from 3.18.4 to 3.18.5.

---
updated-dependencies:
- dependency-name: alpine
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Dockerfile

@@ -1,6 +1,6 @@
-FROM alpine:3.18.4 as build
+FROM alpine:3.18.5 as build
 
-ARG SQUID_VER=6.5
+ARG SQUID_VER=6.6
 
 RUN set -x && \
 	apk add --no-cache  \
@@ -106,7 +106,7 @@ RUN sed -i '1s;^;include /etc/squid/conf.d/*.conf\n;' /etc/squid/squid.conf && \
 
 # --- --- --- --- --- --- --- --- ---
 
-FROM alpine:3.18.4
+FROM alpine:3.18.5
 	
 ENV SQUID_CONFIG_FILE /etc/squid/squid.conf
 ENV TZ Europe/Moscow