ci: try to use namespace for macos to see if that fixes builds

.github/workflows/release-tip.yml

@@ -32,11 +32,8 @@ jobs:
         )
       }}
 
-    runs-on: ghcr.io/cirruslabs/macos-ventura-xcode:latest
+    runs-on: namespace-profile-ghostty-macos
     timeout-minutes: 90
-    env:
-      # Needed for macos SDK
-      AGREE: "true"
     steps:
       - name: Checkout code
         uses: actions/checkout@v4