Bump io.vertx:vertx-core from 4.3.7 to 4.5.3 in /http/vertx (#622)

Bumps [io.vertx:vertx-core](https://github.com/eclipse/vert.x) from 4.3.7 to 4.5.3.
- [Commits](eclipse-vertx/vert.x@4.3.7...4.5.3)

---
updated-dependencies:
- dependency-name: io.vertx:vertx-core
  dependency-type: direct:production
...

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http/vertx/pom.xml

@@ -31,7 +31,7 @@
     <packaging>jar</packaging>
 
     <properties>
-        <vertx.version>4.3.7</vertx.version>
+        <vertx.version>4.5.3</vertx.version>
         <module-name>io.cloudevents.http.vertx</module-name>
     </properties>