Fix tox installs (aws#4603)

* change: adjust tox black stages to install from requirements file

Also remove uneeded config in the command, it is now set in the pyproject.toml
so IDE's and other tooling outside tox picks up the setting.

* change: improve tox install times by not installing all deps when not needed

Moved to using deps to override the test extra being installed in
skip_install tox stages. Now only the needed deps are installed.

Improves install time by around 7x.

Closes aws#4591

* change: bump twine version to 5.0.0

Twine 3.8.0 didn't include its dependencies. The tox stage happened to
work from packaging being installed as a transitive.

Ref: pypa/twine#894

Author: jmahlik

pyproject.toml

@@ -0,0 +1,2 @@
+[tool.black]
+line-length = 100

requirements/tox/black_requirements.txt

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

requirements/tox/twine_requirements.txt

@@ -1 +1 @@
-twine==3.8.0
+twine==5.0.0

tox.ini

@@ -100,28 +100,33 @@ commands =
 [testenv:flake8]
 skipdist = true
 skip_install = true
+deps =
+    -r requirements/tox/flake8_requirements.txt
 commands =
-    pip install --exists-action=w -r requirements/tox/flake8_requirements.txt
     flake8
 
 [testenv:pylint]
 skipdist = true
 skip_install = true
+deps =
+    -r requirements/tox/pylint_requirements.txt
 commands =
-    pip install --exists-action=w -r requirements/tox/pylint_requirements.txt
     python -m pylint --rcfile=.pylintrc -j 0 src/sagemaker
 
 [testenv:spelling]
 skipdist = true
 skip_install = true
+deps =
+    -r requirements/tox/spelling_requirements.txt
 commands =
-    pip install --exists-action=w -r requirements/tox/spelling_requirements.txt
     python -m pylint --rcfile=.pylintrc --disable all --enable spelling --spelling-dict en_US src/sagemaker/{posargs}
 
 [testenv:twine]
 # https://packaging.python.org/guides/making-a-pypi-friendly-readme/#validating-restructuredtext-markup
+skip_install = true
+deps =
+    -r requirements/tox/twine_requirements.txt
 commands =
-    pip install --exists-action=w -r requirements/tox/twine_requirements.txt
     python setup.py sdist
     twine check dist/*.tar.gz
 
@@ -136,39 +141,53 @@ commands =
     sphinx-build -T -W -b html -d _build/doctrees-readthedocs -D language=en . _build/html
 
 [testenv:doc8]
+deps =
+    -r requirements/tox/doc8_requirements.txt
 commands =
-    pip install --exists-action=w -r requirements/tox/doc8_requirements.txt
     doc8 --ignore-path tests/data/serve_resources/mlflow/pytorch/data/pickle_module_info.txt
 
 [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
+deps =
+    -r requirements/tox/black_requirements.txt
 commands =
-    black -l 100 ./
+    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
+deps =
+    -r requirements/tox/black_requirements.txt
 commands =
-    black -l 100 --diff --color --check ./
+    black --diff --color --check ./
 
 [testenv:clean]
 skip_install = true
 commands =
     coverage erase
 
 [testenv:typing]
+# Do not skip installation here, the extras are needed for mypy to get type info
+skip_install = false
+extras =
+    all
+deps =
+    -r requirements/tox/mypy_requirements.txt
 commands =
-    pip install --exists-action=w -r requirements/tox/mypy_requirements.txt
     mypy src/sagemaker
 
 [testenv:docstyle]
+skip_install = true
+deps =
+    -r requirements/tox/pydocstyle_requirements.txt
 commands =
-    pip install --exists-action=w -r requirements/tox/pydocstyle_requirements.txt
     pydocstyle src/sagemaker
 
 [testenv:collect-tests]