👷(CI) add test-e2e job to people.yml

Add test-e2e to people.yml, it will run e2e tests on every PR.
Steps:
  - set env vars for e2e tests
  - build and start docker servers
  (backend, keycloak, DB)
  - install playwright
  - build apps
  - run e2e tests
  - save reports

src/frontend/apps/desk/.env.development

@@ -2,3 +2,4 @@ NEXT_PUBLIC_API_URL=http://localhost:8071/api/v1.0/
 NEXT_PUBLIC_KEYCLOAK_URL=http://localhost:8080/
 NEXT_PUBLIC_KEYCLOAK_REALM=people
 NEXT_PUBLIC_KEYCLOAK_CLIENT_ID=people-front
+NEXT_PUBLIC_KEYCLOAK_LOGIN=true