fix: failing unit tests

Some optional description over here if you need to add more info

on-behalf-of: @Mermaid-Chart <hello@mermaidchart.com>

packages/mermaid-layout-tidy-tree/tsconfig.json

@@ -5,6 +5,6 @@
     "outDir": "./dist",
     "types": ["vitest/importMeta", "vitest/globals"]
   },
-"include": ["./src/**/.ts", "./src/**/*.d.ts"],
+  "include": ["./src/**/*.ts", "./src/**/*.d.ts"],
   "typeRoots": ["./src/types"]
 }