fix(deps): update dependency neo4j-driver to v6

Author: renovate[bot]

package.json

@@ -69,7 +69,7 @@
         "graphiql-explorer": "0.9.0",
         "graphql": "16.11.0",
         "graphql-query-complexity": "1.1.0",
-        "neo4j-driver": "5.28.2",
+        "neo4j-driver": "6.0.0",
         "prettier": "3.6.2",
         "process": "0.11.10",
         "react": "19.2.0",