Update WebRTC code version (2023-09-17T04:13:24).

Bug: None
Change-Id: I1828be750d88f2aae91e634339eceeef34374805
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/320356
Commit-Queue: webrtc-version-updater@webrtc-ci.iam.gserviceaccount.com <webrtc-version-updater@webrtc-ci.iam.gserviceaccount.com>
Bot-Commit: webrtc-version-updater@webrtc-ci.iam.gserviceaccount.com <webrtc-version-updater@webrtc-ci.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#40758}
diff --git a/call/version.cc b/call/version.cc
index 84ca918..fd0bd8a 100644
--- a/call/version.cc
+++ b/call/version.cc
@@ -13,7 +13,7 @@
 namespace webrtc {
 
 // The timestamp is always in UTC.
-const char* const kSourceTimestamp = "WebRTC source stamp 2023-09-16T04:07:54";
+const char* const kSourceTimestamp = "WebRTC source stamp 2023-09-17T04:13:24";
 
 void LoadWebRTCVersionInRegister() {
   // Using volatile to instruct the compiler to not optimize `p` away even