fix: upgrade io.vertx:vertx-core from 4.4.3 to 4.4.4

Snyk has created this PR to upgrade io.vertx:vertx-core from 4.4.3 to 4.4.4.

See this package in Maven Repository:
https://mvnrepository.com/artifact/io.vertx/vertx-core/

See this project in Snyk:
https://app.snyk.io/org/oswaldobapvicjr/project/64bf08bc-cde0-4c00-9126-2e0ff264c685?utm_source=github&utm_medium=referral&page=upgrade-pr

jsonmerge-core/pom.xml

@@ -35,7 +35,7 @@
         <json-smart.version>2.4.11</json-smart.version>
         <json-org.version>20230227</json-org.version>
         <jackson.version>2.15.2</jackson.version>
-        <vertx.version>4.4.3</vertx.version>
+        <vertx.version>4.4.4</vertx.version>
     </properties>
 
     <dependencies>