Fix uri related type bug

Author: davidanthoff

src/protocol/initialize.jl

@@ -110,7 +110,7 @@ end
 function InitializeParams(dict::Dict)
     InitializeParams(dict["processId"],
     haskey(dict, "clientInfo") ? InfoParams(dict["clientInfo"]) : missing,
-    !haskey(dict, "rootPath") ? missing : dict["rootPath"] === nothing ? nothing : DocumentUri(dict["rootPath"]),
+    !haskey(dict, "rootPath") ? missing : dict["rootPath"],
     # LS specification says this key should always exist, but neovim 0.5.1 doesn't seem to
     # send it (seems fixed in neovim 0.6). For now, just assume it might not exist here.
     (rootUri = get(dict, "rootUri", nothing); rootUri === nothing) ? nothing : DocumentUri(rootUri),