Revert "FS-8530 add codecs/mod_sangoma_codec to avoid_mods in debian/bootstrap.sh"

This reverts commit 8a16ed1a.

debian/bootstrap.sh

@@ -44,7 +44,6 @@ avoid_mods=(
   codecs/mod_com_g729
   codecs/mod_ilbc
   codecs/mod_openh264
-  codecs/mod_sangoma_codec
   codecs/mod_siren
   codecs/mod_skel_codec
   endpoints/mod_gsmopen