fix(clang-tidy): performance fixes applied in tests and CI (#3051)

* Initial fixes

* Whoops

* Finish clang-tidy manual fixes

* Add two missing fixes

* Revert

* Update clang-tidy

* Try to fix unreachable code error

* Move nolint comment

* Apply missing fix

* Don't override clang-tidy config

* Does this fix clang-tidy?

* Make all clang-tidy errors visible

* Add comments about NOLINTs and remove a few

* Fix typo

tests/test_local_bindings.cpp

@@ -86,6 +86,8 @@ TEST_SUBMODULE(local_bindings, m) {
     m.def("return_self", [](LocalVec *v) { return v; });
     m.def("return_copy", [](const LocalVec &v) { return LocalVec(v); });
 
+    // Reformatting this class broke pygrep checks
+    // NOLINTNEXTLINE
     class Cat : public pets::Pet { public: Cat(std::string name) : Pet(name) {}; };
     py::class_<pets::Pet>(m, "Pet", py::module_local())
         .def("get_name", &pets::Pet::name);