pre-commit: Upgrade psf/black for stable style 2023 (#8110)

* pre-commit: Upgrade psf/black for stable style 2023

Updating https://github.com/psf/black ... updating 22.12.0 -> 23.1.0 for their `2023 stable style`.
* https://github.com/psf/black/blob/main/CHANGES.md#2310

> This is the first [psf/black] release of 2023, and following our stability policy, it comes with a number of improvements to our stable style…

Also, add https://github.com/tox-dev/pyproject-fmt and https://github.com/abravalheri/validate-pyproject to pre-commit.

I only modified `.pre-commit-config.yaml` and all other files were modified by pre-commit.ci and psf/black.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

other/nested_brackets.py

@@ -15,14 +15,12 @@ brackets and returns true if S is nested and false otherwise.
 
 
 def is_balanced(s):
-
     stack = []
     open_brackets = set({"(", "[", "{"})
     closed_brackets = set({")", "]", "}"})
     open_to_closed = dict({"{": "}", "[": "]", "(": ")"})
 
     for i in range(len(s)):
-
         if s[i] in open_brackets:
             stack.append(s[i])