Update WebRTC code version (2023-10-04T04:04:01).

Bug: None
Change-Id: Ifa04cc89b44f35438a7c3e8693477267ac5d0b4e
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/322341
Bot-Commit: webrtc-version-updater@webrtc-ci.iam.gserviceaccount.com <webrtc-version-updater@webrtc-ci.iam.gserviceaccount.com>
Commit-Queue: webrtc-version-updater@webrtc-ci.iam.gserviceaccount.com <webrtc-version-updater@webrtc-ci.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#40863}
diff --git a/call/version.cc b/call/version.cc
index 28868e8..37998df 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 2023-10-03T04:04:07";
+const char* const kSourceTimestamp = "WebRTC source stamp 2023-10-04T04:04:01";
 
 void LoadWebRTCVersionInRegister() {
   // Using volatile to instruct the compiler to not optimize `p` away even