Reformat (minor, after replacing black with ruff)

Black dependency created a dependabot warning and couldn't be bumped since it collided with pathspec dependencies. Since ruff can also format, black is not needed. But we now have these small format changes, mostly in test files

test/solidlsp/solidity/test_solidity_basic.py

@@ -139,9 +139,9 @@ class TestSolidityLanguageServerBasics:
         references = language_server.request_references("contracts/Token.sol", definition_line, definition_char)
 
         assert references is not None, "Should return references for '_transfer'"
-        assert (
-            len(references) >= 2
-        ), f"'_transfer' should have at least 2 references (callers), found {len(references)}"  # called in transfer() and transferFrom()
+        assert len(references) >= 2, (
+            f"'_transfer' should have at least 2 references (callers), found {len(references)}"
+        )  # called in transfer() and transferFrom()
 
         ref_files = {ref.get("uri", "") for ref in references}
         assert any("Token.sol" in uri for uri in ref_files), "References should include Token.sol"