2021-12-01 release for cos-gpu-installer-v1

Fixes an issue where toolchain installation fails.

BUG=b/207547270

Change-Id: I0102f8468b83fa73d90e2e09d0dcbd960ac131f9
Reviewed-on: https://cos-review.googlesource.com/c/cos/tools/+/25800
Cloud-Build: GCB Service account <228075978874@cloudbuild.gserviceaccount.com>
Reviewed-by: Arnav Kansal <rnv@google.com>
Tested-by: Robert Kolchmeyer <rkolchmeyer@google.com>
diff --git a/release/release-versions.yaml b/release/release-versions.yaml
index 604f74a..bfbef4e 100644
--- a/release/release-versions.yaml
+++ b/release/release-versions.yaml
@@ -12,10 +12,10 @@
     - "v20211027"
 - staging_container_name: "cos-gpu-installer-v1"
   release_container_name: "cos-gpu-installer"
-  build_commit: "6763eb455becf72511f310e650dea4d51ec4d8f7"
+  build_commit: "bb491b2946e0accf1bc940b6bf46e132dcfc7eb4"
   release_tags:
     - "latest"
-    - "v20211006"
+    - "v20211201"
 - staging_container_name: "cos-gpu-installer"
   release_container_name: "cos-gpu-installer"
   build_commit: "f79432cc2708a80849460cec9ebb665618ab445b"