Update hst-install.sh

Allow Debian 12 to be used for install

install/hst-install.sh

@@ -143,7 +143,7 @@ check_wget_curl() {
 
 # Check for supported operating system before proceeding with download
 # of OS-specific installer, and throw error message if unsupported OS detected.
-if [[ "$release" =~ ^(10|11|20.04|22.04)$ ]]; then
+if [[ "$release" =~ ^(10|11|12|20.04|22.04)$ ]]; then
 	check_wget_curl $*
 elif [[ -e "/etc/redhat-release" ]] && [[ "$release" =~ ^(8|9)$ ]]; then
 	check_wget_curl $*