[reports-service] Add Dockerfile

Summary:
Added Dockerfile for reports-service along with other usual config, like docker-compose.
Based on other dockerfiles we have.

Depends on D9036

Test Plan:

# for amd64 linux
docker compose build reports-server

# for m1 arm
cd services/reports
docker buildx build -t commapp/reports-server:latest ../../ -f ./Dockerfile

# then ran it
docker run -p 50056:50056 commapp/reports-server:latest

Reviewers: jon, michal, varun

Reviewed By: michal

Subscribers: ashoat, tomek

Differential Revision: https://phab.comm.dev/D9037