clang-tidy: Suppress performance-enum-size check warning

See: https://clang.llvm.org/extra/clang-tidy/checks/performance/enum-size.html

Author: hebasto

test/mp/test/foo.h

@@ -21,7 +21,7 @@ struct FooStruct
     std::vector<bool> vbool;
 };
 
-enum class FooEnum : int { ONE = 1, TWO = 2, };
+enum class FooEnum : int { ONE = 1, TWO = 2, }; // NOLINT(performance-enum-size)
 
 struct FooCustom
 {