build(deps): bump json-schema-validator from 1.0.78 to 1.0.84 (#1187)

Bumps [json-schema-validator](https://github.com/networknt/json-schema-validator) from 1.0.78 to 1.0.84.

Author: dependabot[bot]

powertools-validation/pom.xml

@@ -73,7 +73,7 @@
         <dependency>
             <groupId>com.networknt</groupId>
             <artifactId>json-schema-validator</artifactId>
-            <version>1.0.78</version>
+            <version>1.0.84</version>
         </dependency>
         <dependency>
             <groupId>com.amazonaws</groupId>