fix: processed count to exclude entries that got ignored in make_entry (#1323)

It doesnt make sense to count these. Most likely they were never shown.
Example: `man_pages` excludes pages from different sections. So you
filter for man pages and end up with like 5 entries and the counter
still says 1000. Not a good experience.

lua/telescope/pickers.lua

@@ -998,12 +998,12 @@ function Picker:get_result_processor(find_id, prompt, status_updater)
       return true
     end
 
-    self:_increment "processed"
-
     if not entry or entry.valid == false then
       return
     end
 
+    self:_increment "processed"
+
     count = count + 1
 
     -- TODO: Probably should asyncify this / cache this / do something because this probably takes