Fix update-compile-commands.py

The upgrade to Clang pulled in a change that renamed `ProcessCompileDatabaseIfNeeded`
(https://chromium-review.googlesource.com/c/chromium/src/+/3237169).
In a similar fashion to
https://chromium-review.googlesource.com/c/chromium/src/+/3253247 we
should use an empty array as well.

R=jkummerow@chromium.org

Bug: none
Change-Id: I056af8fc7969b7c5a31631a65c18743c48ff84be
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3256550
Commit-Queue: Tim van der Lippe <tvanderlippe@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Auto-Submit: Tim van der Lippe <tvanderlippe@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77656}

tools/dev/update-compile-commands.py

@@ -59,8 +59,8 @@ def PrepareBuildDir(arch, mode):
 
 def AddTargetsForArch(arch, combined):
   build_dir = PrepareBuildDir(arch, "debug")
-  commands = compile_db.ProcessCompileDatabaseIfNeeded(
-                compile_db.GenerateWithNinja(build_dir, ["all"]))
+  commands = compile_db.ProcessCompileDatabase(
+                compile_db.GenerateWithNinja(build_dir, ["all"]), [])
   added = 0
   for c in commands:
     key = c["file"]