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

.pre-commit-config.yaml

@@ -1,4 +1,15 @@
 repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.4.0 # must match requirements-tests.txt
+    hooks:
+      - id: trailing-whitespace
+      - id: requirements-txt-fixer
+      - id: end-of-file-fixer
+      - id: check-yaml
+      - id: check-toml
+      - id: check-merge-conflict
+      - id: mixed-line-ending
+      - id: check-case-conflict
   - repo: https://github.com/hadialqattan/pycln
     rev: v2.1.3 # must match requirements-tests.txt
     hooks:
@@ -8,7 +19,7 @@ repos:
     rev: 22.12.0 # must match requirements-tests.txt
     hooks:
       - id: black
-        language_version: python3.9
+        language_version: python3.10
   - repo: https://github.com/pycqa/isort
     rev: 5.11.4 # must match requirements-tests.txt
     hooks:
@@ -33,6 +44,6 @@ ci:
   autofix_commit_msg: "[pre-commit.ci] auto fixes from pre-commit.com hooks"
   autofix_prs: true
   autoupdate_commit_msg: "[pre-commit.ci] pre-commit autoupdate"
-  autoupdate_schedule: weekly
+  autoupdate_schedule: quarterly
   skip: [flake8]
   submodules: false