Modernize packaging and update to support pymc > v4

.github/workflows/cd.yml

@@ -0,0 +1,73 @@
+name: Continuous Deployment
+
+on:
+  workflow_dispatch:
+  pull_request:
+  push:
+    branches:
+      - main
+  release:
+    types:
+      - published
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  FORCE_COLOR: 3
+
+jobs:
+  dist:
+    name: Distribution build
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - uses: hynek/build-and-inspect-python-package@v2
+
+  # Upload to Test PyPI on every commit on main.
+  test-publish:
+    needs: [dist]
+    name: Test Publish to TestPyPI
+    environment: pypi
+    permissions:
+      id-token: write
+    runs-on: ubuntu-latest
+    if:
+      github.repository_owner == 'adrn' && github.event_name == 'push' &&
+      github.ref == 'refs/heads/main'
+
+    steps:
+      - name: Download packages built by build-and-inspect-python-package
+        uses: actions/download-artifact@v4
+        with:
+          name: Packages
+          path: dist
+
+      - name: Upload package to Test PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          repository-url: https://test.pypi.org/legacy/
+
+  publish:
+    needs: [dist]
+    name: Publish to PyPI
+    environment: pypi
+    permissions:
+      id-token: write
+    runs-on: ubuntu-latest
+    if: github.event_name == 'release' && github.event.action == 'published'
+
+    steps:
+      - name: Download packages built by build-and-inspect-python-package
+        uses: actions/download-artifact@v4
+        with:
+          name: Packages
+          path: dist
+
+      - uses: pypa/gh-action-pypi-publish@release/v1
+        if: github.event_name == 'release' && github.event.action == 'published'

.github/workflows/ci.yml

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+name: Tests
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  FORCE_COLOR: 3
+
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        python-version: ["3.9", "3.10", "3.11"]
+        os: ["ubuntu-latest", "macos-latest"]
+    steps:
+
+    - 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 -U pip
+        python -m pip install -e .[test]
+
+    - name: Test package
+      run: >-
+        python -m pytest -ra --cov --cov-report=xml --cov-report=term --durations=20
+
+    - name: Upload coverage report
+      uses: codecov/[email protected]