bug#58790: Eglot URI parsing bug when using clojure-lsp server

[Felician Nemeth]

> The problem occurs when using `xref-find-defintions` while eglot is
> managing a clojure buffer with clojure-lsp. If the symbol that
> xref-find-definitions is activated on is defined in a jar file,
> clojure-lsp by default will provide a location with a response like
> the following
>
> (:jsonrpc "2.0" :id 14 :result
>   (:uri
>   
> "zipfile:///Users/andreperictavares/.m2/repository/org/clojure/tools.namespace/0.3.1/tools.namespace-0.3.1.jar::clojure/tools/namespace/find.clj"
> ... ))
>

Can you, please, consider merging something like github#854?
https://github.com/joaotavora/eglot/pull/854

Currently, Eglot assumes that the uri-scheme is always "file".  I think
Eglot should at least warn the user if this assumption is false instead
of silently failing as it currently does.

Thanks.