ci(github actions): remove step level env as job level env is defined

Author: NicholasGoh

.github/workflows/build.yaml

@@ -31,8 +31,3 @@ jobs:
         uses: hoverkraft-tech/[email protected]
         with:
           compose-file: "compose-dev.yaml"
-        env:
-          MCP_SERVER_PORT: ${{ secrets.MCP_SERVER_PORT }}
-          YOUTUBE_API_KEY: ${{ secrets.YOUTUBE_API_KEY }}
-          OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
-          POSTGRES_DSN: ${{ secrets.POSTGRES_DSN }}