Increase R language server wait time to 10 seconds for CI stability

Author: drejom

src/solidlsp/language_servers/r_language_server.py

@@ -21,7 +21,7 @@ class RLanguageServer(SolidLanguageServer):
 
     @override
     def _get_wait_time_for_cross_file_referencing(self) -> float:
-        return 5.0  # R language server needs extra time for workspace indexing in CI environments
+        return 10.0  # R language server needs extra time for workspace indexing in CI environments
 
     @override
     def is_ignored_dirname(self, dirname: str) -> bool: