Fix: Use memory gateway for LSP test to avoid creating actual db

Author: themisvaltinos

tests/lsp/test_reference_macro_multi.py

@@ -7,7 +7,7 @@
 
 @pytest.mark.fast
 def test_macro_references_multirepo() -> None:
-    context = Context(paths=["examples/multi/repo_1", "examples/multi/repo_2"])
+    context = Context(paths=["examples/multi/repo_1", "examples/multi/repo_2"], gateway="memory")
     lsp_context = LSPContext(context)
 
     d_path = next(