Update WebRTC code version (2021-07-11T04:04:45).

TBR=webrtc-version-updater@webrtc-ci.iam.gserviceaccount.com,mbonadei@webrtc.org

Bug: None
Change-Id: I39dd0b7d15f5636ca57763a74a1a75d8848437f7
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/225725
Reviewed-by: 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/master@{#34453}
diff --git a/call/version.cc b/call/version.cc
index cc885cb..6496c0c 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 2021-07-09T04:05:24";
+const char* const kSourceTimestamp = "WebRTC source stamp 2021-07-11T04:04:45";
 
 void LoadWebRTCVersionInRegister() {
   // Using volatile to instruct the compiler to not optimize `p` away even