fix: Restore full test matrix in CI configuration

- Add matrix strategy for all Python versions
- Include all operating systems
- Restore check and docs jobs
- Fix PyPy configuration

Author: anandgupta42

.github/workflows/ci.yml

@@ -7,15 +7,46 @@ on:
     branches: [ main, master ]
 
 jobs:
-  pypy38-cover:
-    runs-on: ubuntu-22.04
+  test:
+    name: ${{ matrix.tox-env }} (${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-22.04, windows-latest, macos-latest]
+        tox-env:
+          - py38-cover
+          - py38-nocov
+          - py39-cover
+          - py39-nocov
+          - py310-cover
+          - py310-nocov
+          - py311-cover
+          - py311-nocov
+          - py312-cover
+          - py312-nocov
+          - pypy38-cover
+          - pypy38-nocov
+          - pypy39-cover
+          - pypy39-nocov
+          - pypy310-cover
+          - pypy310-nocov
+
     steps:
       - uses: actions/checkout@v3
 
-      - name: Set up PyPy
+      - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: "pypy-3.8"
+          python-version: |
+            pypy-3.8
+            pypy-3.9
+            pypy-3.10
+            3.8
+            3.9
+            3.10
+            3.11
+            3.12
           architecture: x64
 
       - name: Install dependencies
@@ -25,4 +56,26 @@ jobs:
           python -m pip install tox tox-gh-actions
       
       - name: Test with tox
-        run: tox 
+        env:
+          TOXENV: ${{ matrix.tox-env }}
+        run: tox
+
+  check:
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-python@v4
+        with:
+          python-version: "3.x"
+      - run: pip install tox
+      - run: tox -e check
+
+  docs:
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-python@v4
+        with:
+          python-version: "3.x"
+      - run: pip install tox
+      - run: tox -e docs