fix: update mineru-vl-utils version constraint to 0.1.15

pyproject.toml

@@ -39,7 +39,7 @@ dependencies = [
     "openai>=1.70.0,<3",
     "beautifulsoup4>=4.13.5,<5",
     "magika>=0.6.2,<0.7.0",
-    "mineru-vl-utils>=0.1.14,<1",
+    "mineru-vl-utils>=0.1.15,<1",
 ]
 
 [project.optional-dependencies]