change: adjust tox black stages to install from requirements file

Also remove uneeded config in the command, it is set in the pyproject.toml

Author: jmahlik

requirements/tox/black_requirements.txt

@@ -0,0 +1 @@
+black==24.3.0

tox.ini

@@ -142,19 +142,23 @@ commands =
 
 [testenv:black-format]
 # Used during development (before committing) to format .py files.
+skip_install = true
 setenv =
     LC_ALL=C.UTF-8
     LANG=C.UTF-8
 commands =
-    black -l 100 ./
+    pip install --exists-action=w -r requirements/tox/black_requirements.txt
+    black ./
 
 [testenv:black-check]
 # Used by automated build steps to check that all files are properly formatted.
+skip_install = true
 setenv =
     LC_ALL=C.UTF-8
     LANG=C.UTF-8
 commands =
-    black -l 100 --diff --color --check ./
+    pip install --exists-action=w -r requirements/tox/black_requirements.txt
+    black --diff --color --check ./
 
 [testenv:clean]
 skip_install = true