Add CI/CD workflows

Author: lmlg

.github/workflows/build-and-test.yaml

@@ -0,0 +1,31 @@
+name: Build/Test
+
+jobs:
+  build:
+    name: Build the library and run tests
+    strategy:
+      matrix:
+        os: [ubuntu-latest, ubuntu-24.04, ubuntu-22.04,
+             ubuntu-24.04-arm, macos-latest, macos-14]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Build and install library
+        run: |
+          sudo python3 setup.py install
+
+      - name: Install pytest
+        run: |
+          if [[ "${{ matrix.os }}" =~ "ubuntu" ]]; then
+            sudo apt update
+            sudo apt install -y python3-pytest
+          else
+            sudo python3 -m ensurepip --upgrade
+            sudo pip3 install pytest
+          fi
+
+      - name: Run tests
+        run: |
+          pytest .

.github/workflows/pr.yaml

@@ -0,0 +1,8 @@
+name: PR
+
+on:
+  pull_request:
+
+jobs:
+  build:
+    uses: ./.github/workflows/build-and-test.yml