update flysystem-rdf

Author: ylebre

composer.json

@@ -23,7 +23,7 @@
     "laminas/laminas-diactoros": "^2.14",
     "league/flysystem": "^1.0",
     "mjrider/flysystem-factory": "^0.7",
-    "pdsinterop/flysystem-rdf": "^0.5",
+    "pdsinterop/flysystem-rdf": "^0.6",
     "pietercolpaert/hardf": "^0.3",
     "psr/http-factory": "^1.0",
     "psr/http-message": "^1.0",