Update WebRTC code version (2024-02-26T04:03:26).

Bug: None
Change-Id: I2e892556bf007b9121ef833993f8b001f098217f
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/340902
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@{#41804}

call/version.cc

diff --git a/call/version.cc b/call/version.cc
index 96488d7..c3bfb95b 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 2024-02-25T04:13:05";
+const char* const kSourceTimestamp = "WebRTC source stamp 2024-02-26T04:03:26";
 
 void LoadWebRTCVersionInRegister() {
   // Using volatile to instruct the compiler to not optimize `p` away even