cos-gpu-installer v2.0.26 release

Fall back to R470 on K80 GPU

Change-Id: I68ec138f2f716140f750406a0e15ca8cb169ec1b
Reviewed-on: https://cos-review.googlesource.com/c/cos/tools/+/36647
Tested-by: He Gao <hegao@google.com>
Cloud-Build: GCB Service account <228075978874@cloudbuild.gserviceaccount.com>
Reviewed-by: Robert Kolchmeyer <rkolchmeyer@google.com>
diff --git a/release/release-versions.yaml b/release/release-versions.yaml
index 9e1f5b1..4fc6b6c 100644
--- a/release/release-versions.yaml
+++ b/release/release-versions.yaml
@@ -18,9 +18,9 @@
     - "v20220608"
 - staging_container_name: "cos-gpu-installer"
   release_container_name: "cos-gpu-installer"
-  build_commit: "0340e4b17bde4e7e307a64ab218db8c148030bf1"
+  build_commit: "c91f80f463d2b76d056012f0fcc27313cde7d22d"
   release_tags:
-    - "v2.0.25"
+    - "v2.0.26"
 - staging_container_name: "cos-gpu-driver-builder"
   release_container_name: "cos-gpu-driver-builder"
   build_commit: "37655b424d6dbbac740b1b8d5ceae9dab7c6fb16"