Fix #24081 - lsp diagnostic code type conversion (#24347)

- **store `buffer::Diagnostic`as NumberOrString instead of assuming
String**
- **update zed-industries/lsp-types rev**

Closes #24081

Release Notes:

- Fixed an issue where language server diagnostic codes would be converted to strings leading to errors with some language servers

crates/language/src/proto.rs

@@ -213,7 +213,7 @@ pub fn serialize_diagnostics<'a>(
             group_id: entry.diagnostic.group_id as u64,
             is_primary: entry.diagnostic.is_primary,
             is_valid: true,
-            code: entry.diagnostic.code.clone(),
+            code: entry.diagnostic.code.as_ref().map(|s| s.to_string()),
             is_disk_based: entry.diagnostic.is_disk_based,
             is_unnecessary: entry.diagnostic.is_unnecessary,
             data: entry.diagnostic.data.as_ref().map(|data| data.to_string()),
@@ -419,7 +419,7 @@ pub fn deserialize_diagnostics(
                     },
                     message: diagnostic.message,
                     group_id: diagnostic.group_id as usize,
-                    code: diagnostic.code,
+                    code: diagnostic.code.map(lsp::NumberOrString::from_string),
                     is_primary: diagnostic.is_primary,
                     is_disk_based: diagnostic.is_disk_based,
                     is_unnecessary: diagnostic.is_unnecessary,