gstlal: lower python-gi-dev min version to 3.14

- this is a lie, we require 3.28, but it's not available and we can limp
  along with work-arounds until it is.  3.14 is what's in the current
  Debian LDG reference OS, so that's what we'll say we need.

gstlal/configure.ac

@@ -257,7 +257,7 @@ to your GI_TYPELIB_PATH environment variable.])
 
 
 # FIXME:  we really require 3.28 for element support, but not yet available on reference platform
-AC_SUBST([MIN_PYGOBJECT_VERSION], [3.22])
+AC_SUBST([MIN_PYGOBJECT_VERSION], [3.14])
 PKG_CHECK_MODULES([PYGOBJECT], [pygobject-3.0 gmodule-2.0])
 AC_SUBST([PYGOBJECT_CFLAGS])
 AC_SUBST([PYGOBJECT_LIBS])