packaging: adds trisquel 8 to postinst script

Adds trisquel 8 to ensure it gets updates from ubuntu 16.04 repository

Change-Id: Icb4e31e1dcb1110cca6374810521cf54a4007be0

packaging/rules/debian-one-click-install/jami-all.postinst

@@ -99,6 +99,8 @@ if [ -f /etc/os-release ]; then
         ENDTAG="debian_9"
     elif [ "${DEBIAN_CODENAME}" = "buster" ] || [ "${ID}_${VERSION_ID}" = "debian_10" ]; then
         ENDTAG="debian_10"
+    elif [ "${ID}_${VERSION_ID}" = "trisquel_8.0" ]; then
+        ENDTAG="ubuntu_16.04"
     elif [ "${UBUNTU_CODENAME}" = "xenial" ] || [ "${ID}_${VERSION_ID}" = "ubuntu_16.04" ]; then
         ENDTAG="ubuntu_16.04"
     elif [ "${UBUNTU_CODENAME}" = "bionic" ] || [ "${ID}_${VERSION_ID}" = "ubuntu_18.04" ]; then