Squid (#15605)

* Add squid (ct)

* Update ct/squid.sh

* Simplify squid.sh by removing proxy user instructions

Removed instructions for adding a proxy user inside the container.

---------

Co-authored-by: push-app-to-main[bot] <203845782+push-app-to-main[bot]@users.noreply.github.com>
Co-authored-by: Sam Heinz <sam@samheinz.com>
Co-authored-by: CanbiZ (MickLesk) <47820557+MickLesk@users.noreply.github.com>

ct/squid.sh

@@ -0,0 +1,53 @@
+#!/usr/bin/env bash
+source <(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/build.func)
+# Copyright (c) 2021-2026 community-scripts ORG
+# Author: 007hacky007
+# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
+# Source: https://www.squid-cache.org/
+
+APP="Squid"
+var_tags="${var_tags:-proxy}"
+var_cpu="${var_cpu:-1}"
+var_ram="${var_ram:-512}"
+var_disk="${var_disk:-4}"
+var_os="${var_os:-debian}"
+var_version="${var_version:-13}"
+var_arm64="${var_arm64:-yes}"
+var_unprivileged="${var_unprivileged:-1}"
+
+header_info "$APP"
+variables
+color
+catch_errors
+
+function update_script() {
+  header_info
+  check_container_storage
+  check_container_resources
+  if [[ ! -f /etc/squid/squid.conf ]]; then
+    msg_error "No ${APP} Installation Found!"
+    exit
+  fi
+  msg_info "Updating Squid"
+  $STD apt update
+  $STD apt upgrade -y
+  msg_ok "Updated Squid"
+
+  msg_info "Validating Squid Configuration"
+  $STD squid -k parse
+  msg_ok "Validated Squid Configuration"
+
+  msg_info "Restarting Squid"
+  systemctl restart squid
+  msg_ok "Restarted Squid"
+  exit
+}
+
+start
+build_container
+description
+
+msg_ok "Completed successfully!\n"
+echo -e "${CREATING}${GN}${APP} setup has been successfully initialized!${CL}"
+echo -e "${INFO}${YW} Proxy endpoint:${CL}"
+echo -e "${TAB}${GATEWAY}${BGN}${IP}:3128${CL}"