vars: We now have a script for build id

TODO: Fully automate
Change-Id: Ibdcd15f24cbe6477ac84d63f019ff1f145fa2def
diff --git a/vars/flame b/vars/flame
index b62e03e..a11194a 100644
--- a/vars/flame
+++ b/vars/flame
@@ -20,7 +20,7 @@
   # common repos in coral
 )
 
-# Updated manually
+# Updated semi-manually via pixel/update-any-var.sh
 
 readonly prev_build_id=SQ3A.220605.009.A1 # Jun 2022
 readonly build_id=SQ3A.220705.003.A1 # Jul 2022