Update WebRTC code version (2025-08-09T04:06:03).

Bug: None
Change-Id: I724e34d1d5872c0fc310d413fb060cc9d173c3ce
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/403921
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@{#45313}
diff --git a/call/version.cc b/call/version.cc
index 8636657..12791c9 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 2025-08-08T04:06:45";
+const char* const kSourceTimestamp = "WebRTC source stamp 2025-08-09T04:06:03";
 
 void LoadWebRTCVersionInRegister() {
   // Using volatile to instruct the compiler to not optimize `p` away even