Unpin flake8<=6.0.0 and update pre-commit

The dev from flake8-pyproject can't reproduce
the flake8 version 6.1.0 incompatability I reported.
I tried again on my system and I also can't seem to reproduce it
anymore. Not sure why. I updated pre-commit as it was using too of
a version and was giving me issues.

.github/workflows/build.yml

@@ -59,7 +59,7 @@ jobs:
 
       - name: Flake code
         run: |
-          python -m pip install 'flake8<=6.0.0' Flake8-pyproject flake8-typing-imports
+          python -m pip install flake8 Flake8-pyproject flake8-typing-imports
           python -m flake8 src tests
 
       - name: Check import ordering

.pre-commit-config.yaml

@@ -5,7 +5,7 @@ repos:
       - id: autoflake
         args: ["--in-place", "--remove-all-unused-imports"]
   - repo: https://github.com/PyCQA/flake8
-    rev: 4.0.1
+    rev: 6.1.0
     hooks:
       - id: flake8
         additional_dependencies:

dev-environment.yml

@@ -43,7 +43,7 @@ dependencies:
   - autopep8
   - black
   - build
-  - flake8 <= 6.0.0
+  - flake8
   - flake8-typing-imports
   - isort
   - myst-nb

pyproject.toml

@@ -51,7 +51,7 @@ dev = [
     "autopep8",
     "black",
     "build",
-    "flake8 <= 6.0.0",
+    "flake8",
     "flake8-pyproject",
     "flake8-typing-imports",
     "isort",