Add GitHub Actions CI for automated testing

- Run tests on push and pull requests
- Test on Python 3.9, 3.10, 3.11, 3.12
- Uses ubuntu-latest for fast execution

Author: Sahil-u07

.github/workflows/tests.yml

@@ -0,0 +1,32 @@
+name: Tests
+
+on:
+  push:
+    branches: [main, dev]
+  pull_request:
+    branches: [main, dev]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ['3.9', '3.10', '3.11', '3.12']
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements-dev.txt
+          pip install pyzmq
+
+      - name: Run tests
+        run: pytest -v