`dynamic_library_name` incompatible with `libloading` version 0.9.0

Good day,

libloading changed their API slightly, specifically the trait bounds to Library::new: https://github.com/nagisa/rust_libloading/commit/4b98285041defabf87df73f57051f5d55125758f

As a result, bindings generated with dynamic_library_name present fail to compile.
Generated code should be changed something like this:

 pub unsafe fn new<P>(path: P) -> Result<Self, ::libloading::Error>
     where
-        P: AsRef<::std::ffi::OsStr>,
+        P: ::libloading::AsFilename,
     {
         let library = ::libloading::Library::new(path)?;
         Self::from_library(library)
     }

Locate the code-generation path used when dynamic_library_name is present and inspect the generated Library::new signature. Update the generated bounds to match libloading 0.9.0, then verify that bindings using dynamic_library_name compile with that dependency version.