TST: revive CI

.github/workflows/build-test.yaml

@@ -0,0 +1,49 @@
+name: Build and Test
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+  workflow_dispatch:
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+
+  build:
+    name: "${{ matrix.tests-type }} tests: py${{ matrix.python-version }} on ${{ matrix.os }}"
+    strategy:
+      # run all tests even if e.g. image tests fail early
+      fail-fast: false
+      matrix:
+        os:
+          #- macos-latest
+          #- windows-latest
+          - ubuntu-latest
+        python-version:
+          - '3.8'
+          - '3.9'
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+    - name: Set up Python
+      uses: actions/setup-python@v3
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Checkout repo
+      uses: actions/checkout@v3
+    - name: Build
+      shell: bash
+      env:
+        dependencies: ${{ matrix.dependencies }}
+      run: |
+        python -m pip install "."
+        python -m pip install -r test_requirements.txt
+    - name: Run Tests
+      env:
+        testsuite: ${{ matrix.tests-type }}
+      run: pytest --color=yes