Refactored ci script

Author: lorossi

.github/workflows/build-and-deploy.yml

@@ -10,6 +10,10 @@ on:
       - ".github/workflows/**"
   workflow_dispatch:
 
+concurrency:
+  group: pages-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 permissions:
   contents: read
   pages: write
@@ -20,22 +24,32 @@ env:
 
 jobs:
   check-animations:
-    uses: ./.github/workflows/check-animations.yml
-
-  build:
     runs-on: ubuntu-latest
-    needs: check-animations
+
     steps:
-      - name: Checkout repository
+      - &checkout_step
+        name: Checkout repository
         uses: actions/checkout@v5
-
-      - name: Set up Python
+      - &setup_python_step
+        name: Set up Python
         uses: actions/setup-python@v6
         with:
           python-version: "3.13"
-
-      - name: Install dependencies
+          cache: pip
+          cache-dependency-path: ./scripts/requirements.txt
+      - &install_dependencies_step
+        name: Install dependencies
         run: pip install -r ./scripts/requirements.txt
+      - name: Run animations check
+        run: python3 ./scripts/check_animations.py
+
+  build:
+    runs-on: ubuntu-latest
+    needs: check-animations
+    steps:
+      - *checkout_step
+      - *setup_python_step
+      - *install_dependencies_step
 
       - name: Build website
         run: python3 ./scripts/build_website.py --destination ${{ env.SITE_DIR }} --randomize --seed 875492