Fix missing GC root (#59785)

Per #59766 (comment)

Author: Keno

src/julia.h

@@ -2016,7 +2016,7 @@ JL_DLLEXPORT jl_value_t *jl_get_module_binding_or_nothing(jl_module_t *m, jl_sym
 
 // get binding for reading
 JL_DLLEXPORT jl_binding_t *jl_get_binding(jl_module_t *m JL_PROPAGATES_ROOT, jl_sym_t *var);
-JL_DLLEXPORT jl_value_t *jl_module_globalref(jl_module_t *m, jl_sym_t *var) JL_GLOBALLY_ROOTED;
+JL_DLLEXPORT jl_value_t *jl_module_globalref(jl_module_t *m JL_PROPAGATES_ROOT, jl_sym_t *var);
 JL_DLLEXPORT jl_value_t *jl_get_binding_type(jl_module_t *m, jl_sym_t *var);
 // get binding for assignment
 JL_DLLEXPORT void jl_check_binding_currently_writable(jl_binding_t *b, jl_module_t *m, jl_sym_t *s);

src/rtutils.c

@@ -126,6 +126,7 @@ JL_DLLEXPORT void JL_NORETURN jl_type_error_global(const char *fname, jl_module_
                                                jl_value_t *got JL_MAYBE_UNROOTED)
 {
     jl_value_t *gr = jl_module_globalref(mod, sym);
+    JL_GC_PUSH2(&expected, &got);
     jl_value_t *ex = jl_new_struct(jl_typeerror_type, jl_symbol(fname), gr, expected, got);
     jl_throw(ex);
 }