Run pre-commit as a separate job instead of from tox

.github/workflows/linting.yml

@@ -0,0 +1,23 @@
+name: Linting
+
+on:
+  push:
+
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [master]
+
+jobs:
+  linting:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-python@v4
+        with:
+          python-version: "3.10"
+
+      - name: Install pre-commit
+        run: pip install pre-commit
+
+      - name: Run pre-commit
+        run: pre-commit run --all-files --show-diff-on-failure

pyproject.toml

@@ -51,7 +51,6 @@ optional = true
 [tool.poetry.group.dev.dependencies]
 black = ">=22.6.0"
 isort = ">=5.10.1"
-pre-commit = ">=2.20.0"
 pytest = ">=7.1.2"
 pytest-django = ">=4.5.2"
 mypy = ">=0.971"

tox.ini

@@ -13,7 +13,7 @@ skip_missing_interpreters = True
 python =
     3.7: py37
     3.8: py38
-    3.9: py39, pre-commit
+    3.9: py39
     3.10: py310
 
 [testenv]
@@ -36,12 +36,6 @@ deps =
     pytest-django
     pytest-cov
 
-[testenv:pre-commit]
-skip_install = True
-deps = pre-commit
-commands = pre-commit run --all-files --show-diff-on-failure
-
-
 ; Need to mention the env because we use tests.settings
 [testenv:docs-django{32,40,main}-{postgres,mysql,sqlite}]
 extras = docs