vars: We now have a script for build id

TODO: Fully automate
Change-Id: Ibdcd15f24cbe6477ac84d63f019ff1f145fa2def
diff --git a/vars/barbet b/vars/barbet
index 5cf6f13..76fa9ac 100644
--- a/vars/barbet
+++ b/vars/barbet
@@ -22,10 +22,10 @@
   device/google/barbet
 )
 
-# Updated manually
+# Updated semi-manually via pixel/update-any-var.sh
 
 readonly prev_kernel_tag=android-12.1.0_r0.27 # Jun 2022
-readonly kernel_tag=android-12.1.0_r0.34 # Jun 2022
+readonly kernel_tag=android-12.1.0_r0.34 # Jul 2022
 
 readonly prev_build_id=SQ3A.220605.009.A1 # Jun 2022
 readonly build_id=SQ3A.220705.003.A1 # Jul 2022