Re-enable gjs tests on architectures where it is available

debian/control

@@ -21,6 +21,7 @@ Build-Depends:
  e2fslibs-dev,
  elfutils,
  fuse,
+ gjs [!alpha !hppa !ia64 !m68k !sh4 !sparc64 !x32],
  gnupg <!nocheck>,
  gobject-introspection,
  gtk-doc-tools <!nodoc>,
@@ -188,7 +189,7 @@ Depends:
  cpio,
  fuse,
  gir1.2-ostree-1.0,
- gjs [!sparc64],
+ gjs [!alpha !hppa !ia64 !m68k !sh4 !sparc64 !x32],
  gnupg,
  ostree,
  python3,