fix(ci): add missing melos-no-flutter flag to failing workflows

Root cause: All original workflows used "melos bootstrap --no-flutter",
but I forgot to set the melos-no-flutter parameter for gotrue,
storage_client, realtime_client, and supabase in the refactored versions.

Without this flag, melos tries to run "melos bootstrap" which requires
Flutter to be installed, but these workflows only install Dart SDK,
causing the error: /bin/sh: 1: eval: flutter: not found

Fixed by adding melos-no-flutter: true to:
- gotrue.yml
- storage_client.yml
- realtime_client.yml
- supabase.yml

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: grdsdev

.github/workflows/gotrue.yml

@@ -31,3 +31,4 @@ jobs:
       needs-docker: true
       docker-compose-dir: infra/gotrue
       test-concurrency: 1
+      melos-no-flutter: true

.github/workflows/realtime_client.yml

@@ -29,3 +29,4 @@ jobs:
       package-name: realtime_client
       working-directory: packages/realtime_client
       test-concurrency: 1
+      melos-no-flutter: true

.github/workflows/storage_client.yml

@@ -31,3 +31,4 @@ jobs:
       needs-docker: true
       docker-compose-dir: infra/storage_client
       test-concurrency: 1
+      melos-no-flutter: true

.github/workflows/supabase.yml

@@ -39,3 +39,4 @@ jobs:
       package-name: supabase
       working-directory: packages/supabase
       test-concurrency: 1
+      melos-no-flutter: true