fix a panic causing a crash when clangd sends workspaceSemanticTokensRefresh#232

santtuniskanen wants to merge 4 commits into

arduino:mainarduino/arduino-language-server:mainfrom

santtuniskanen:implement/WorkspaceSemantictokensRefreshsanttuniskanen/arduino-language-server:implement/WorkspaceSemantictokensRefreshCopy head branch name to clipboard