Update mermaids.sh

mermaids.sh

@@ -149,11 +149,7 @@ log "Updating package lists..."
 if grep -q "deb debianmain" /etc/apt/sources.list; then
   sed -i 's/deb \(.*\) main/deb \1 main non-free non-free-firmware/' /etc/apt/sources.list
 fi
-apt-get update -o Acquire::Retries=3 || {
-  warn "apt-get update failed — checking DNS..."
-  cat /etc/resolv.conf
-  exit 1
-}
+apt-get update -o Acquire::Retries=3
 rm /etc/resolv.conf /etc/apt/apt.conf.d/99-dns 2>/dev/null
 
 log "Installing dependencies..."