Update ci.yml

.github/workflows/ci.yml

@@ -1,22 +1,20 @@
-name: CI/CD Pipeline
-
-on:
-  push:
-    branches:
-      - develop
-  pull_request:
-    branches:
-      - main
-
 jobs:
   build-and-push:
     name: Build and Push Docker Image
-    runs-on: windows-latest
+    runs-on: ubuntu-latest
 
     steps:
       - name: Checkout repository
         uses: actions/checkout@v3
 
+      - name: Cache pip dependencies
+        uses: actions/cache@v3
+        with:
+          path: ~/.cache/pip
+          key: ${{ runner.os }}-pip-${{ hashFiles('requirements.txt') }}
+          restore-keys: |
+            ${{ runner.os }}-pip-
+
       - name: Log in to DockerHub
         uses: docker/login-action@v2
         with: