Freeze pre-commit hook revisions (#16312)

Author: AlexWaygood

.pre-commit-config.yaml

@@ -1,6 +1,6 @@
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v6.0.0
+    rev: 3e8a8703264a2f4a69428a0aa4dcb512790b2c8c # frozen: v6.0.0
     hooks:
       - id: trailing-whitespace
       - id: end-of-file-fixer
@@ -11,7 +11,8 @@ repos:
         args: [--fix=lf]
       - id: check-case-conflict
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.15.20 # must match requirements-tests.txt
+    # The Ruff version must match requirements-tests.txt.
+    rev: c59bba8fb259db0fec2bbb77ad8ba51ea7341b56 # frozen: v0.15.20
     hooks:
       - id: ruff
         name: Run ruff on stubs, tests and scripts
@@ -27,11 +28,11 @@ repos:
           - "--unsafe-fixes"
         files: '.*test_cases/.+\.py$'
   - repo: https://github.com/psf/black-pre-commit-mirror
-    rev: 26.5.1
+    rev: 4160603246a6b365d4a2af661c6d71b0a0f50478 # frozen: 26.5.1
     hooks:
       - id: black
   - repo: https://github.com/pycqa/flake8
-    rev: 7.3.0
+    rev: c48217e1fc006c2dddd14df54e83b67da15de5cd # frozen: 7.3.0
     hooks:
       - id: flake8
         language: python