ci(shorebird): rename macos-framework dst to framework.zip (#150)

create_macos_framework.py outputs FlutterMacOS.framework.zip locally,
but legacy uploads it to .../darwin-x64-release/framework.zip in the
public bucket. Sharded was uploading it as FlutterMacOS.framework.zip,
so the legacy/sharded bucket compare showed framework.zip only-in-
legacy and FlutterMacOS.framework.zip only-in-sharded for the same
artifact.

src stays as FlutterMacOS.framework.zip (the actual local filename);
only the published dst path changes.

Author: eseidel

shorebird/ci/compose.json

@@ -22,7 +22,7 @@
       "--x64-out-dir": "mac_release"
     },
     "artifacts": [
-      {"src": "FlutterMacOS.framework.zip", "dst": "flutter_infra_release/flutter/$engine/darwin-x64-release/FlutterMacOS.framework.zip"},
+      {"src": "FlutterMacOS.framework.zip", "dst": "flutter_infra_release/flutter/$engine/darwin-x64-release/framework.zip"},
       {"src": "FlutterMacOS.framework.dSYM.zip", "dst": "flutter_infra_release/flutter/$engine/darwin-x64/FlutterMacOS.framework.dSYM.zip"}
     ]
   },