try another test using micromamba

.github/workflows/build_and_test.yml

@@ -0,0 +1,49 @@
+# This workflow will install Python dependencies, run tests and lint with a single version of Python
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
+
+name: Test stripy
+
+on:
+  push
+
+jobs:
+  build:
+    name: Test Python ${{ matrix.python-version }} on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
+
+    defaults:
+      run:
+        shell: bash -el {0}
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: mamba-org/setup-micromamba@v1
+      - with:
+          environment-name: test-env
+          create-args: >-
+            python=${{ matrix.python-version }}
+            numpy
+            pytest
+            fortran-compiler
+            gfortran
+            build
+            meson
+          micromamba-version: "1.3.1-0"
+          init-shell: >-
+            bash
+            powershell
+          cache-environment: true
+          post-cleanup: "all"
+
+      - name: Install current stripy
+        run: |
+          pip install .
+
+      - name: Test with pytest
+        run: |
+          python -m pytest -vv stripy/tests