Fix build with llvm-15
https://github.com/KDE/clazy/commit/20fca52da739ebefa47e35f6b338bb99a0da3cfe

Index: src/checks/manuallevel/qt6-header-fixes.cpp
--- src/checks/manuallevel/qt6-header-fixes.cpp.orig
+++ src/checks/manuallevel/qt6-header-fixes.cpp
@@ -270,7 +270,7 @@ Qt6HeaderFixes::Qt6HeaderFixes(const std::string &name
 }
 
 void Qt6HeaderFixes::VisitInclusionDirective(clang::SourceLocation HashLoc, const clang::Token &IncludeTok, clang::StringRef FileName, bool IsAngled,
-                        clang::CharSourceRange FilenameRange, const clang::FileEntry *File, clang::StringRef SearchPath,
+                        clang::CharSourceRange FilenameRange, clazy::OptionalFileEntryRef File, clang::StringRef SearchPath,
                         clang::StringRef RelativePath, const clang::Module *Imported, clang::SrcMgr::CharacteristicKind FileType)
 {
     if (shouldIgnoreFile(HashLoc))