ci: Update pre-commit hooks

As a fix, also turn the comment in libpfm's build file into a proper Starlark
docstring.

.pre-commit-config.yaml

@@ -1,17 +1,17 @@
 repos:
   -   repo: https://github.com/keith/pre-commit-buildifier
-      rev: 7.3.1
+      rev: 8.0.0
       hooks:
       -   id: buildifier
       -   id: buildifier-lint
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v1.13.0
+    rev: v1.14.1
     hooks:
       - id: mypy
         types_or: [ python, pyi ]
         args: [ "--ignore-missing-imports", "--scripts-are-modules" ]
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.7.2
+    rev: v0.9.1
     hooks:
       - id: ruff
         args: [ --fix, --exit-non-zero-on-fix ]

tools/libpfm.BUILD.bazel

@@ -1,5 +1,4 @@
-# Build rule for libpfm, which is required to collect performance counters for
-# BENCHMARK_ENABLE_LIBPFM builds.
+"""Build rule for libpfm, which is required to collect performance counters for BENCHMARK_ENABLE_LIBPFM builds."""
 
 load("@rules_foreign_cc//foreign_cc:defs.bzl", "make")