cppgc: fix wrong header name

Change-Id: I9ad6402561f06b4c2069c08f452e52a4d6b533eb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2270402Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68584}

BUILD.gn

@@ -4150,10 +4150,10 @@ v8_source_set("cppgc_base") {
     "include/cppgc/custom-space.h",
     "include/cppgc/garbage-collected.h",
     "include/cppgc/heap.h",
-    "include/cppgc/internal/api-contants.h",
+    "include/cppgc/internal/api-constants.h",
     "include/cppgc/internal/atomic-entry-flag.h",
     "include/cppgc/internal/compiler-specific.h",
-    "include/cppgc/internal/finalizer-traits.h",
+    "include/cppgc/internal/finalizer-trait.h",
     "include/cppgc/internal/gc-info.h",
     "include/cppgc/internal/persistent-node.h",
     "include/cppgc/internal/pointer-policies.h",