pre-commit: update our dependencies (#179)

* pre-commit: update our dependencies

I had to deal with `PYTHONPATH` again and also with `DJANGO_SETTINGS_MODULE`
this time. Mainly, I did this work because my PR at
readthedocs/readthedocs.org#10355 is failing and it
doesn't make sense.

This fixed my issue locally and I hope it fixes the issue on CircleCI as well.
Let's see.

* Update darker dependencies as well

Author: humitos

pre-commit-config.yaml

@@ -3,7 +3,7 @@ fail_fast: false
 repos:
 
 - repo: https://github.com/pre-commit/pre-commit-hooks
-  rev: v4.1.0
+  rev: v4.4.0
   hooks:
     # Disabled because yapf is better for our purpose
     # - id: autopep8-wrapper
@@ -38,7 +38,7 @@ repos:
       args: ['--fix=lf']
 
 - repo: https://github.com/PyCQA/autoflake
-  rev: v1.7.7
+  rev: v2.1.1
   hooks:
     - id: autoflake
       args: ['--in-place', '--remove-all-unused-imports', '--remove-unused-variable']
@@ -51,30 +51,28 @@ repos:
 #       args: ['--in-place', '--wrap-summaries=80', '--wrap-descriptions=80', '--pre-summary-newline']
 
 - repo: https://github.com/akaihola/darker
-  rev: 1.3.2
+  rev: 1.7.1
   hooks:
     - id: darker
       # TODO: find a way to pass `--check` only when running via `tox -e
       # pre-commit`
       args: ['--isort']
       additional_dependencies:
-        - isort==5.10.1
-        # darker is not compatible with v22.1.0
-        # https://github.com/akaihola/darker/issues/264
-        - black==21.12b0
+        - isort==5.12.0
+        - black==23.3.0
       exclude: |
         (?x)^(
             readthedocs/rtd_tests/files/conf.py|
         )$
 
 - repo: https://github.com/asottile/blacken-docs
-  rev: v1.12.1
+  rev: 1.13.0
   hooks:
     - id: blacken-docs
       additional_dependencies: [black==22.10.0]
 
 - repo: https://github.com/PyCQA/prospector
-  rev: 1.3.1
+  rev: 1.10.2
   hooks:
     - id: prospector
       args:
@@ -92,7 +90,7 @@ repos:
       # Because of an issue with pylint's Django utils and PATH environment, we add PYTHONPATH.
       # This was used as a hack when running on Circle CI as well
       # Once we upgrade to prospector >=1.9, we can remove it again.
-      entry: env PYTHONPATH=readthedocs prospector
+      entry: env PYTHONPATH=readthedocs:./ DJANGO_SETTINGS_MODULE=readthedocs.settings.test prospector
       # We have to install the dependencies from an URL since we don't have access to this file easily from pre-commit
       additional_dependencies:
         - -r