ci: update CI workflow to use Python 3.11 and 3.12, enhance linting and testing steps

Author: deaneeth

.github/workflows/ci.yml

@@ -1,4 +1,4 @@
-name: CI
+name: 🧪 CI
 
 on:
   push:
@@ -7,56 +7,44 @@ on:
     branches: [ main, master ]
 
 jobs:
-  test:
+  build:
     runs-on: ubuntu-latest
+
     strategy:
       matrix:
-        python-version: [3.8, 3.10, 3.13]
+        python-version: [ "3.11", "3.12" ]
+
     steps:
-      - uses: actions/checkout@v4
+      - name: 🧰 Checkout repository
+        uses: actions/checkout@v4
 
-      - name: Set up Python
-        uses: actions/setup-python@v4
+      - name: 🐍 Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+          cache: "pip"
 
-      - name: Install dependencies
+      - name: 📦 Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install -r requirements-dev.txt
+          pip install -e .
+          pip install pytest ruff black
 
-      - name: Run tests
+      # -----------------------------
+      # Code quality
+      # -----------------------------
+      - name: 🧹 Run Ruff linter (auto-fix mode)
         run: |
-          pytest -q
+          ruff check . --fix
+        continue-on-error: false  # set true if you want lint warnings but no CI failure
 
-  lint:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: Setup Python
-        uses: actions/setup-python@v4
-        with:
-          python-version: 3.13
-      - name: Install lint
-        run: pip install ruff
-      - name: Ruff
-        run: ruff check .
-
-  package:
-    if: startsWith(github.ref, 'refs/tags/')
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: Set up Python
-        uses: actions/setup-python@v4
-        with:
-          python-version: 3.13
-      - name: Build wheel
+      - name: 🎨 Check formatting (Black)
         run: |
-          python -m pip install --upgrade build
-          python -m build
-      - name: Upload artifact
-        uses: actions/upload-artifact@v4
-        with:
-          name: dist
-          path: dist/*
+          black --check src examples tests
+
+      # -----------------------------
+      # Tests
+      # -----------------------------
+      - name: 🧪 Run pytest
+        run: |
+          pytest -v --maxfail=1 --disable-warnings