[3.13] Omit Python/perf_jit_trampoline.c from the **/*jit* CODEOWNERS rule (GH-136519)

Omit perf_jit_trampoline from "JIT" codeowners
(cherry picked from commit 56c6f04)

Co-authored-by: Brandt Bucher <brandtbucher@microsoft.com>

Author: brandtbucher

.github/CODEOWNERS

@@ -22,6 +22,7 @@ configure*                    @erlend-aasland @corona10
 **/*genobject*                @markshannon
 **/*hamt*                     @1st1
 **/*jit*                      @brandtbucher
+Python/perf_jit_trampoline.c  # Exclude the owners of "**/*jit*", above.
 Objects/set*                  @rhettinger
 Objects/dict*                 @methane @markshannon
 Objects/typevarobject.c       @JelleZijlstra