I wante to setup github actions deployment inside a sub directory

|-------- README.md
|-------- blabla-client
|-------- blabla-server → tom.yml

in. “.” directroy there is .github/workflows/main.yml

so now i want to build nodejs app inside blabla-server sub directory

i tried this syntax
working-directory: ./blabla-server

but throws following err -
Error we couldn’t find a fly.toml nor an app specified by the -a flag. If you want to launch a new app, use ‘flyctl launch’