Revert "feat: Disable IPv6"

This reverts commit 07abae5.

Author: ChandonPierre

entrypoint.sh

@@ -25,7 +25,7 @@ echo "DEBUG, determined RESOLVERS from /etc/resolv.conf: '$RESOLVERS'"
 conf=""
 for ONE_RESOLVER in ${RESOLVERS}; do
 	echo "Possible resolver: $ONE_RESOLVER"
-	conf="resolver $ONE_RESOLVER ipv6=off; "
+	conf="resolver $ONE_RESOLVER; "
 done
 
 echo "Final chosen resolver: $conf"
@@ -438,4 +438,4 @@ echo "Testing nginx config..."
 ${NGINX_BIN} -t
 
 echo "Starting nginx! Have a nice day."
-${NGINX_BIN} -g "daemon off;"
+${NGINX_BIN} -g "daemon off;"