test: fix snapshot test

Author: suo

tests/snapshots/integration_test__lint_with_no_linters.snap

@@ -0,0 +1,11 @@
+---
+source: tests/integration_test.rs
+expression: output_lines
+---
+- "STDOUT:"
+- No linters ran.
+- ""
+- ""
+- "STDERR:"
+- "WARNING: No previous init data found. If this is the first time you're running lintrunner, you should run `lintrunner init`."
+