Switch from tox-gh-actions to tox-gh and use TOML (#181)

Second attempt and fixing #173

Author: paddyroddy

.github/workflows/test.yaml

@@ -31,9 +31,8 @@ jobs:
           - "3.13"
     steps:
       # yamllint disable-line rule:line-length
-      - uses: paddyroddy/.github/actions/python/tox@f2115592179eb43cf106eeb181adcd003d4cba41 # v0
+      - uses: paddyroddy/.github/actions/python/tox@2e83ccde571114eea4dacae50214fd1dff839be0 # v0
         with:
           cache-path: .tox
-          operating-system: ${{ matrix.os }}
           pyproject-toml: ./pyproject.toml
           python-version: ${{ matrix.python-version }}

pyproject.toml

@@ -137,27 +137,27 @@ write_to = "src/example/_version.py"
 overrides."project.classifiers".inline_arrays = false
 overrides."tool.coverage.paths.source".inline_arrays = false
 overrides."tool.ruff.lint.isort.section-order".inline_arrays = false
+overrides."tool.tox.env_run_base.commands".inline_arrays = false
 
 [tool.tox]
-legacy_tox_ini = """
-    [gh-actions]
-    python =
-        3.11: py311
-        3.12: py312
-        3.13: py313
-
-    [gh-actions:env]
-    OS =
-        ubuntu-latest: linux
-        macos-latest: macos
-        windows-latest: windows
-
-    [testenv]
-    commands =
-        pytest --cov --cov-report=lcov
-    deps =
-        pytest-cov
-
-    [tox]
-    env_list = py{311,312}-{linux,macos,windows}
-"""
+env_list = [
+    "py311",
+    "py312",
+    "py313",
+]
+env_run_base = {commands = [
+    [
+        "pytest",
+        "--cov",
+        "--cov-report=lcov",
+    ],
+], deps = [
+    "pytest-cov",
+]}
+gh.python = {"3.11" = [
+    "py311",
+], "3.12" = [
+    "py312",
+], "3.13" = [
+    "py313",
+]}