Update WebRTC code version (2020-12-25T04:04:51).
Update WebRTC code version (2020-12-25T04:04:51).

TBR=26646219319870ca9d01017a011e960429912aaa@webrtc-ci.iam.gserviceaccount.com,mbonadei@webrtc.org

Bug: None
Change-Id: I680207778fdb77a13098f3bf5c12134189f382ca
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/199142
Reviewed-by: 26646219319870ca9d01017a011e960429912aaa@webrtc-ci.iam.gserviceaccount.com <26646219319870ca9d01017a011e960429912aaa@webrtc-ci.iam.gserviceaccount.com>
Commit-Queue: 26646219319870ca9d01017a011e960429912aaa@webrtc-ci.iam.gserviceaccount.com <26646219319870ca9d01017a011e960429912aaa@webrtc-ci.iam.gserviceaccount.com>
Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#32880}

TimothyGu/libilbc,TimothyGu/libilbc,TimothyGu/libilbc,TimothyGu/libilbc,TimothyGu/libilbc