Enhance .gitlab-ci.yml by adding registry credentials for backend and frontend…

Enhance .gitlab-ci.yml by adding registry credentials for backend and frontend staging deployments to improve security and streamline access to the container registry.
4 jobs from master in 1 minute 5 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #127089
docker
docker_build_backend_staging

00:43

passed #127090
docker
docker_build_frontend_staging

00:43

 
  Deploy
failed #127091
sg deploy
deploy_backend_staging

00:15

failed #127092
sg deploy
deploy_frontend_staging

00:21

 
MSG:

Failed to register task: An error occurred (ClientException) when calling the RegisterTaskDefinition operation: Role is not valid

PLAY RECAP *********************************************************************
sg-devbox : ok=16 changed=4 unreachable=0 failed=1 skipped=7 rescued=0 ignored=0

Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1

- name: read ecs definition from json
^ here


PLAY RECAP *********************************************************************
sg-devbox : ok=12 changed=3 unreachable=0 failed=1 skipped=7 rescued=0 ignored=0

Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1