[build] Enable gn check for most of v8

Currently there are 32 gn check failures across v8 (not including
third_party). These are due to issues in cppgc and inspector, which are
not trivially resolveable, so for now 4 targets (+ third_party) are
being excluded from the checks.

Bug: v8:7330
Change-Id: I506abe8e452c26239262499fc1fe2a6347a4c84b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2851886Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74255}

.gn

@@ -11,7 +11,13 @@ buildconfig = "//build/config/BUILDCONFIG.gn"
 # matching these patterns (see "gn help label_pattern" for format) will have
 # their includes checked for proper dependencies when you run either
 # "gn check" or "gn gen --check".
-check_targets = []
+no_check_targets = [
+  "//:cppgc_base",
+  "//:v8_internal_headers",
+  "//src/inspector:inspector",
+  "//test/cctest:cctest_sources",
+  "//third_party/*",
+]
 
 # These are the list of GN files that run exec_script. This whitelist exists
 # to force additional review for new uses of exec_script, which is strongly