Add missing absl deps to `video/timing/simulator`.

For some reason, `gn check` does not notice missing absl deps.

These deps are needed for downstream builds.

Bug: b/423646186
Change-Id: I5147849ce8efb492de9cf658ae2a340a2589aa36
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/417961
Auto-Submit: Rasmus Brandt <brandtr@webrtc.org>
Commit-Queue: Rasmus Brandt <brandtr@webrtc.org>
Reviewed-by: Åsa Persson <asapersson@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#45964}
diff --git a/video/timing/simulator/BUILD.gn b/video/timing/simulator/BUILD.gn
index 880f73b..85da493 100644
--- a/video/timing/simulator/BUILD.gn
+++ b/video/timing/simulator/BUILD.gn
@@ -84,6 +84,7 @@
         "../../../test:create_test_environment",
         "../../../test:test_support",
         "test",
+        "//third_party/abseil-cpp/absl/functional:any_invocable",
       ]
     }
   }