chore(Archive): make the ◾ macro local (leanprover-community#39367)

`◾` is [listed as the final tactic](https://leanprover-community.github.io/mathlib4_docs/tactics.html#%C2%ABtactic%E2%97%BE%C2%BB) provided by Mathlib, but it's just a synonym for `aesop` used in one `Archive` file, not actually for downstream consumption. By making it a local macro, it won't show up in the documentation page.

Co-authored-by: Anne C.A. Baanen <vierkantor@vierkantor.com>

Author: Vierkantor

Archive/Examples/IfNormalization/Result.lean

@@ -13,8 +13,8 @@ import Mathlib.Tactic.Recall
 See `Statement.lean` for background.
 -/
 
-macro "◾" : tactic => `(tactic| aesop)
-macro "◾" : term => `(term| by aesop)
+local macro "◾" : tactic => `(tactic| aesop)
+local macro "◾" : term => `(term| by aesop)
 
 namespace IfExpr