fix(ci): frontend image build context must be repo root (monorepo shared pkg)

Author: AndreaPrestia

.github/workflows/release.yml

@@ -49,7 +49,7 @@ jobs:
             context: .
             dockerfile: ./backend/Dockerfile
           - name: frontend
-            context: ./frontend
+            context: .
             dockerfile: ./frontend/Dockerfile
           - name: web
             context: ./web