Run firebase cli on Cloud Run - firebase

Question

What I want to acheieve
So using Cloud Run, I wanted to achieve as below
Firebase Cloud Function(FCF) invoked
FCF makes a call to the other API service and fetch a certain value {bar:baz}
FCF makes a call to Cloud Run endpoint with the value as params
Cloud Run that was built and deployed with Docker Image of Firebase CLI gets triggered
in Cloud Run, it executes the commands firebase functions:config:set foo.bar=baz
Successfully updates FCF environment variables as foo.bar=baz
Issues
so previously asked here, Google Cloud Run - Run Shell Script in firebase project and with the solutions that were provided by #guillaume blaquiere, I finally got to the point where I run commands like firebase --version or firebase projects:list and they worked fine as the information is printed out on the browser.
However, when I run the commands like firebase use project test123 or firebase functions:config:set foo.bar=baz, Cloud Run throws the error exec error: exit status 1
Source Code
# Dockerfile
FROM node
RUN npm i -g firebase-tools
ADD my_script.sh /
COPY --from=msoap/shell2http /app/shell2http /shell2http
RUN chmod +x my_script.sh
ENTRYPOINT ["/shell2http","-export-all-vars"]
CMD ["/update","/my_script.sh"]
#my_script.sh
#!/bin/sh
firebase --token $TOKEN use foobarbaz-123
firebase functions:config:set foo.bar=baz
when build image with gcb
gcloud builds submit --tag gcr.io/foobarbaz-123/testbash
when deploy
gcloud run deploy --image gcr.io/foobarbaz-123/testbash --platform managed
or deploy with token that I get from firebase login:ci
gcloud run deploy --image gcr.io/foobarbaz-123/testbash --platform managed --set-env-vars=TOKEN=foobarbaz12345
where do I need to fix? Any advices or suggestions will be appreciated