Fix test

I changed the binary name of one script but probably other changes are
needed.

There are still these lintian errors about:
E: cjs-tests: non-empty-dependency_libs-in-la-file usr/lib/cjs/libgimarshallingtests.la
E: cjs-tests: incorrect-libdir-in-la-file usr/lib/cjs/libgimarshallingtests.la /nowhere != /usr/lib/cjs
E: cjs-tests: non-empty-dependency_libs-in-la-file usr/lib/cjs/libregress.la
E: cjs-tests: incorrect-libdir-in-la-file usr/lib/cjs/libregress.la /nowhere != /usr/lib/cjs
E: cjs-tests: non-empty-dependency_libs-in-la-file usr/lib/cjs/libwarnlib.la
E: cjs-tests: incorrect-libdir-in-la-file usr/lib/cjs/libwarnlib.la /nowhere != /usr/lib/cjs

debian/tests folder not changed, seems not used

installed-tests/script.test.in

@@ -1,3 +1,3 @@
 [Test]
 Type=session
-Exec=gjs @pkglibexecdir@/installed-tests/scripts/@name@
+Exec=cjs @pkglibexecdir@/installed-tests/scripts/@name@