Update .gitlab-ci.yml file

.gitlab-ci.yml

 test:
   script:
-    - echo $TEST_FILE_VAR
\ No newline at end of file
+    - echo $TEST_FILE_VAR
+  services:
+    # https://gitlab.com/gitlab-org/modelops/applied-ml/code-suggestions/ai-assist/-/merge_requests/705
+    - name: registry.gitlab.com/gitlab-org/modelops/applied-ml/code-suggestions/ai-assist/model-gateway:3804aec7
+      alias: ai-gateway
+  variables:
+    AIGW_LOGGING__LEVEL: debug
+    AIGW_LOGGING__TO_FILE: ./modelgateway_debug.log
\ No newline at end of file