languages: Allow installing pre-release of rust-analyzer and clangd (#37530)

Release Notes:

- Added lsp binary config to allow fetching nightly rust-analyzer and
clangd releases

crates/languages/src/python.rs

@@ -157,6 +157,7 @@ impl LspAdapter for PythonLspAdapter {
     async fn fetch_latest_server_version(
         &self,
         _: &dyn LspAdapterDelegate,
+        _: &AsyncApp,
     ) -> Result<Box<dyn 'static + Any + Send>> {
         Ok(Box::new(
             self.node
@@ -1111,6 +1112,7 @@ impl LspAdapter for PyLspAdapter {
     async fn fetch_latest_server_version(
         &self,
         _: &dyn LspAdapterDelegate,
+        _: &AsyncApp,
     ) -> Result<Box<dyn 'static + Any + Send>> {
         Ok(Box::new(()) as Box<_>)
     }
@@ -1422,6 +1424,7 @@ impl LspAdapter for BasedPyrightLspAdapter {
     async fn fetch_latest_server_version(
         &self,
         _: &dyn LspAdapterDelegate,
+        _: &AsyncApp,
     ) -> Result<Box<dyn 'static + Any + Send>> {
         Ok(Box::new(()) as Box<_>)
     }