Support numeric tokens in work report LSP requests (#41448)

Closes https://github.com/zed-industries/zed/issues/41347

Release Notes:

- Indicate progress for more kinds of language servers

crates/editor/src/inlays/inlay_hints.rs

@@ -1181,17 +1181,17 @@ pub mod tests {
             })
             .unwrap();
 
-        let progress_token = "test_progress_token";
+        let progress_token = 42;
         fake_server
             .request::<lsp::request::WorkDoneProgressCreate>(lsp::WorkDoneProgressCreateParams {
-                token: lsp::ProgressToken::String(progress_token.to_string()),
+                token: lsp::ProgressToken::Number(progress_token),
             })
             .await
             .into_response()
             .expect("work done progress create request failed");
         cx.executor().run_until_parked();
         fake_server.notify::<lsp::notification::Progress>(lsp::ProgressParams {
-            token: lsp::ProgressToken::String(progress_token.to_string()),
+            token: lsp::ProgressToken::Number(progress_token),
             value: lsp::ProgressParamsValue::WorkDone(lsp::WorkDoneProgress::Begin(
                 lsp::WorkDoneProgressBegin::default(),
             )),
@@ -1211,7 +1211,7 @@ pub mod tests {
             .unwrap();
 
         fake_server.notify::<lsp::notification::Progress>(lsp::ProgressParams {
-            token: lsp::ProgressToken::String(progress_token.to_string()),
+            token: lsp::ProgressToken::Number(progress_token),
             value: lsp::ProgressParamsValue::WorkDone(lsp::WorkDoneProgress::End(
                 lsp::WorkDoneProgressEnd::default(),
             )),