[pre-commit.ci] Pre-commit autoupdate. (#143)

* [pre-commit.ci] Pre-commit autoupdate.

updates:
- [github.com/pre-commit/mirrors-clang-format: v19.1.5 → v20.1.7](https://github.com/pre-commit/mirrors-clang-format/compare/v19.1.5...v20.1.7)

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

---------

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

.pre-commit-config.yaml

@@ -7,7 +7,7 @@ repos:
       - id: check-merge-conflict
       - id: check-case-conflict
   - repo: https://github.com/pre-commit/mirrors-clang-format
-    rev: v19.1.5
+    rev: v20.1.7
     hooks:
     - id: clang-format
       'types_or': [c++, c]

src/pybind11-utils/include/pybind11_utils/smart_variant_wrapper.h

@@ -91,7 +91,7 @@ namespace mo2::python {
         };
 
         template <class R, class C, class... Args>
-        struct function_signature<R (C::*)(Args...)&> {
+        struct function_signature<R (C::*)(Args...) &> {
             using type = R(C*, Args...);
         };