Improve pre-commit config (#9563)

- Add a few more hooks. These are all very fast, and I've found them useful in other projects:
  - Autofixes:
    - `trailing-whitespace`: fixes trailing whitespace
    - `requirements-txt-fixer`: alphabetises items in `requirements.txt` files
    - `end-of-file-fixer`: makes sure every file ends with a single newline character
    - `mixed-line-ending`: Makes sure Windows users don't accidentally introduce CRLF line endings into a file that uses LF line endings
  - None-autofixes:
    - `check-yaml`: loads YAML files to validate syntax
    - `check-toml`: loads TOML files to validate syntax
    - `check-merge-conflict`: detects merge-conflict strings in files and blocks them from accidentally being committed
    - `check-case-conflict`: checks for files with names that would conflict on a case-insensitive filesystem like MacOS HFS+ or Windows FAT; blocks them from being committed.
  - Change the bot schedule to quarterly, to reduce noisy PRs
  - Change the `black` language target-version to Python 3.10, synching the setting here with the changes that were made to our `pyproject.toml` file in #7538

tests/check_consistent.py

@@ -8,6 +8,7 @@ from __future__ import annotations
 import os
 import re
 import sys
+import urllib.parse
 from pathlib import Path
 
 import tomli
@@ -220,8 +221,9 @@ def get_precommit_requirements() -> dict[str, SpecifierSet]:
         if not repo.get("python_requirement", True):
             continue
         hook = repo["hooks"][0]
-        package_name, package_rev = hook["id"], repo["rev"]
-        package_specifier = SpecifierSet(f"=={package_rev.removeprefix('v')}")
+        package_name = Path(urllib.parse.urlparse(repo["repo"]).path).name
+        package_rev = repo["rev"].removeprefix("v")
+        package_specifier = SpecifierSet(f"=={package_rev}")
         precommit_requirements[package_name] = package_specifier
         for additional_req in hook.get("additional_dependencies", []):
             req = Requirement(additional_req)