lsp: Support tracking multiple registrations of diagnostic providers (#41096)

Closes #40966
Closes #41195
Closes #40980 

Release Notes:

- Fixed diagnostics not working with basedpyright/pyright beyond an
initial version of the document

---------

Co-authored-by: Smit Barmase <heysmitbarmase@gmail.com>
Co-authored-by: Anthony Eid <hello@anthonyeid.me>
Co-authored-by: dino <dinojoaocosta@gmail.com>

crates/collab/src/tests/editor_tests.rs

@@ -2585,7 +2585,7 @@ async fn test_lsp_pull_diagnostics(
             capabilities: capabilities.clone(),
             initializer: Some(Box::new(move |fake_language_server| {
                 let expected_workspace_diagnostic_token = lsp::ProgressToken::String(format!(
-                    "workspace/diagnostic-{}-1",
+                    "workspace/diagnostic/{}/1",
                     fake_language_server.server.server_id()
                 ));
                 let closure_workspace_diagnostics_pulls_result_ids = closure_workspace_diagnostics_pulls_result_ids.clone();