Update Vert.x to 5.0.4 and fix JUnit version compatibility

- Upgrade Vert.x from 4.5.11 to 5.0.4
- Update Vert.x badge in README.md to reflect version 5.0.4+
- Revert JUnit from unstable 6.0.0 back to stable 5.11.3
- Fix platform launcher versions to maintain compatibility (6.0.0 → 1.11.3)

Author: glassfox

README.md

@@ -8,7 +8,7 @@
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 [![Java Version](https://img.shields.io/badge/Java-21%2B-blue.svg)](https://openjdk.java.net/projects/jdk/21/)
 [![Coverage](https://img.shields.io/badge/Coverage-77.7%25-yellow.svg)]()
-[![Vert.x](https://img.shields.io/badge/Vert.x-4.5.11%2B-purple.svg)](https://vertx.io/)
+[![Vert.x](https://img.shields.io/badge/Vert.x-5.0.4%2B-purple.svg)](https://vertx.io/)
 Inqwise Async bridges standard Java blocking I/O structures with Vert.x's asynchronous, non-blocking APIs. By providing robust wrappers for traditional Java classes such as {@link java.io.InputStream}, {@link java.io.OutputStream}, {@link java.io.Reader}, {@link java.io.Writer}, and more, Inqwise Async enables developers to integrate existing Java codebases into Vert.x-based reactive applications without disrupting the event loop. This bridge ensures efficient and scalable I/O operations by managing back-pressure and flow control, facilitating the modernization of legacy systems for high-performance, event-driven environments.
 
 ## Table of Contents

pom.xml

@@ -47,7 +47,7 @@
 		<maven.version>3.9.8</maven.version>
 		<java.version>21</java.version>
 		<maven-compiler-plugin.version>3.14.1</maven-compiler-plugin.version>
-		<junit5.version>6.0.0</junit5.version>
+		<junit5.version>5.11.3</junit5.version>
 		<maven-flatten-plugin.version>1.6.0</maven-flatten-plugin.version>
 		<maven.gpg.plugin.version>3.2.8</maven.gpg.plugin.version>
 		<maven.javadoc.plugin.version>3.12.0</maven.javadoc.plugin.version>
@@ -102,7 +102,7 @@
 		<dependency>
 			<groupId>org.junit.platform</groupId>
 			<artifactId>junit-platform-launcher</artifactId>
-			<version>6.0.0</version>
+			<version>1.11.3</version>
 			<scope>test</scope>
 		</dependency>
 	</dependencies>
@@ -127,7 +127,7 @@
 			<dependency>
 				<groupId>org.junit.platform</groupId>
 				<artifactId>junit-platform-launcher</artifactId>
-				<version>6.0.0</version>
+				<version>1.11.3</version>
 			</dependency>
 			<dependency>
 				<groupId>org.apache.logging.log4j</groupId>