CI: Skeleton setup to run tests

.github/FUNDING.yml

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+github: [jonnor]
+

.github/workflows/tests.yaml

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+
+name: Run tests
+
+on: [push, pull_request]
+
+jobs:
+  test_micropython:
+    runs-on: ubuntu-latest
+    env:
+      MICROPYTHON_BIN: ./micropython/ports/unix/build-standard/micropython
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+    - uses: actions/checkout@v4
+      with:
+        repository: micropython/micropython
+        path: micropython
+        ref: master
+    - name: Setup MicroPython X86
+      working-directory: micropython
+      run: source tools/ci.sh && ci_unix_32bit_setup && ci_unix_standard_build
+
+    - name: Run tests
+      run: |
+        MICROPYPATH=./ micropython tests/test_npyfile.py
+
+  test_cpython:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [3.10]
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+
+    - name: Run tests
+      run: |
+        PYTHONPATH=./ python tests/test_npyfile.py