deps: update com.networknt:json-schema-validator to v1.5.7

Author: renovate[bot]

gradle/libs.versions.toml

@@ -38,7 +38,7 @@ jgit = "7.2.1.202505142326-r"
 jiraRestClient = "6.0.2"
 jruby = "9.4.12.1"
 jslt = "0.1.14"
-jsonSchemaValidator = "1.5.6"
+jsonSchemaValidator = "1.5.7"
 kaml = "0.78.0"
 kotest = "5.9.1"
 kotlinPoet = "2.2.0"