warning: `path::subpath(const_iterator, const_iterator)` can be made static

[N-Dekker]

Environment

toml++ version and/or commit hash:
HEAD of git master, commit hash 1e8829b

Compiler:

Clang Tidy LLVM 21.1.6

C++ standard mode:
C++17

Target arch:
x64

Library configuration overrides:

Relevant compilation flags:

Describe the bug

warning: method 'subpath' can be made static [readability-convert-member-functions-to-static]
 3560 |         path path::subpath(std::vector<path_component>::const_iterator start,
      |                    ^
 3561 |                                            std::vector<path_component>::const_iterator end) const
      |                                                                                             ~~~~~

As far as I can see, this warning makes sense, and it would be nice to fix it.