[clang-format] AllowShortEnumsOnASingleLine not honored when enum has trailing comma

Short C enumeration are split into multiple lines, despite AllowShortEnumsOnASingleLine being set to true, when enum has trailing comma.

Example:

enum test {
A,
B,
C,
};

should be transformed to

enum test { A, B, C, };

clang-format version 23.0.0git (https://github.com/llvm/llvm-project.git 91c4decc01522c0130d47f8270330194259f4207)