Bump Vertx to 4.3.7 (#495)

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JAVA-IONETTY-3167773

Co-authored-by: snyk-bot <[email protected]>

Author: fabiojose

http/vertx/pom.xml

@@ -31,7 +31,7 @@
     <packaging>jar</packaging>
 
     <properties>
-        <vertx.version>4.3.6</vertx.version>
+        <vertx.version>4.3.7</vertx.version>
         <module-name>io.cloudevents.http.vertx</module-name>
     </properties>