fix(git_status): correctly count result on_complete (#3321)

The previous implementation with `self.manager:num_results()` could return
0 despite having results due to suspected async/event loop issues
(#3316). This change counts valid entries manually to ensure accurate
result count.

lua/telescope/make_entry.lua

@@ -1387,7 +1387,7 @@ function make_entry.gen_from_git_status(opts)
       return nil
     end
 
-    return setmetatable({
+    return make_entry.set_default_entry_mt({
       value = file,
       status = mod,
       ordinal = entry,