Update pihole.sh to update PiHole service (#2781)

Add pihole update functionality

CHANGELOG.md

@@ -10,6 +10,13 @@
 - All LXC instances created using this repository come pre-installed with Midnight Commander, which is a command-line tool (`mc`) that offers a user-friendly file and directory management interface for the terminal environment.
 - 🚨 **The scripts in the repository will no longer provide support for Proxmox VE 7 starting from July 2024 (scripts will not execute on PVE7). Subsequent <a href='https://forum.proxmox.com/threads/proxmox-ve-support-lifecycle.35755/' target='_blank' rel='noopener noreferrer'>Proxmox VE - Support Lifecycle</a>**
 
+## 2024-04-12
+
+### Changed
+
+- **OpenMediaVault LXC**
+  - Removed from website
+
 ## 2024-04-09
 
 ### Changed

ct/pihole.sh

@@ -55,11 +55,12 @@ function default_settings() {
 function update_script() {
 header_info
 if [[ ! -d /etc/pihole ]]; then msg_error "No ${APP} Installation Found!"; exit; fi
-msg_info "Updating ${APP} LXC"
+msg_info "Updating ${APP}"
-apt-get update &>/dev/null
+set +e
-apt-get -y upgrade &>/dev/null
+pihole -up
-msg_ok "Updated Successfully"
+msg_ok "Updated ${APP}"
 exit
+fi
 }
 
 start