Move "deploy_application.yml" logic directly into "deploy.yml" workflow

- The deploy now only deploys the application so there is no need to
  have application deploy as a separate workflow

Author: TheOneFromNorway

.github/workflows/build-and-push-image.yml

@@ -39,7 +39,7 @@ jobs:
       - name: Configure AWS Dev Credentials
         uses: aws-actions/configure-aws-credentials@v5
         with:
-          role-to-assume: arn:aws:iam::393416225559:role/GithubDeployMavisAndInfrastructure
+          role-to-assume: arn:aws:iam::393416225559:role/GithubDeployECSService
           aws-region: eu-west-2
       - name: Check if dev image exists
         id: check-dev-image
@@ -54,7 +54,7 @@ jobs:
         if: env.PUSH_IMAGE_TO_PRODUCTION == 'true'
         uses: aws-actions/configure-aws-credentials@v5
         with:
-          role-to-assume: arn:aws:iam::820242920762:role/GithubDeployMavisAndInfrastructure
+          role-to-assume: arn:aws:iam::820242920762:role/GithubDeployECSService
           aws-region: eu-west-2
       - name: Check if production image exists
         if: env.PUSH_IMAGE_TO_PRODUCTION == 'true'