add encoding

Author: Liam-DeVoe

hypothesis-python/tests/cover/test_constants_ast.py

@@ -195,7 +195,7 @@ def test_local_modules_ignores_test_modules(path):
 
 def test_ignores_ast_parse_error(tmp_path):
     p = tmp_path / "errors_on_parse.py"
-    p.write_text("[1, " * 200 + "]" * 200)
+    p.write_text("[1, " * 200 + "]" * 200, encoding="utf-8")
     module = ModuleType("<test_constants_from_module_large_string>")
     module.__file__ = str(p)