Update WebRTC code version (2022-07-25T04:04:11).

Bug: None
Change-Id: I0153a24d262a0c573787cc7611d6e20c3012b188
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/269361
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@{#37605}

call/version.cc

diff --git a/call/version.cc b/call/version.cc
index cc6a247..dae4884 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 2022-07-24T04:02:10";
+const char* const kSourceTimestamp = "WebRTC source stamp 2022-07-25T04:04:11";
 
 void LoadWebRTCVersionInRegister() {
   // Using volatile to instruct the compiler to not optimize `p` away even