Update .gitlab-ci.yml file

.gitlab-ci.yml

+stages:
+  - build
+  - test
+  - deploy
+
+build:
+  stage: build
+  script:
+    - echo "Building the application..."
+    - # Add build commands if necessary
+
+test:
+  stage: test
+  script:
+    - echo "Running tests..."
+    - # Add test commands if necessary
+
+deploy:
+  stage: deploy
+  script:
+    - echo "Deploying the application..."
+    - python -m pip install -r requirements.txt  
+    - python run.py