Update .gitlab-ci.yml file

.gitlab-ci.yml

 stages:
-    - lint 
-    - test 
-    - run 
+  - lint
+  - test
+  - run
 
-    #define Python version to use in all jobs 
-    image: python:3.11
+image: python:3.11
 
-    before-script:
-        - pip install -r requirements.txt || pip install requests pytest pylint
+before_script:
+  - pip install -r requirements.txt
+  - pip install pylint pytest
 
-    lint:
-        stage: lint
-        script:
-            - echo "Checking the Code style"
-            - pylint *.py --disable=C0114,C0115,C0116
+lint:
+  stage: lint
+  script:
+    - echo " Running linter..."
+    - pylint *.py --disable=C0114,C0115,C0116
+  allow_failure: false
 
-    test:
-        stage: test
-        script:
-            - echo "Running main data_fetch script"
-            - python data_fetch.py
-            - echo "Output file generated under ./output/"
-            - find output -type f | head -10 
-        artifacts:
-            paths:
-                - output/
-            when: always
+test:
+  stage: test
+  script:
+    - echo " Running pytest tests..."
+    - pytest -v
+  allow_failure: false
 
+run:
+  stage: run
+  script:
+    - echo " Running main data_fetch script..."
+    - python data_fetch.py
+    - echo " Output generated under ./output/"
+    - find output -type f | head -10
+  artifacts:
+    paths:
+      - output/
+    when: always