ah, act on right repo

Author: gnprice

.github/workflows/ci.yml

@@ -27,10 +27,8 @@ jobs:
         TZ=UTC git --git-dir ~/flutter/.git log -1 --format='%h | %ci | %s' --date=iso8601-local
         echo ~/flutter/bin >> "$GITHUB_PATH"
 
-        git branch -avv
-
         # The Flutter tool assumes the tip of tree is "upstream/master".
-        git update-ref refs/remotes/upstream/master origin/main
+        git --git-dir ~/flutter/.git update-ref refs/remotes/upstream/master origin/main
 
     - name: Download Flutter SDK artifacts (flutter precache)
       run: flutter precache --universal