Bump io.smallrye.reactive:smallrye-mutiny-vertx-pg-client

Bumps io.smallrye.reactive:smallrye-mutiny-vertx-pg-client from 2.22.0 to 3.9.0.

---
updated-dependencies:
- dependency-name: io.smallrye.reactive:smallrye-mutiny-vertx-pg-client
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

chapter-10/database-example/pom.xml

@@ -67,7 +67,7 @@
         <dependency>
             <groupId>io.smallrye.reactive</groupId>
             <artifactId>smallrye-mutiny-vertx-pg-client</artifactId>
-            <version>2.22.0</version>
+            <version>3.9.0</version>
         </dependency>
         <dependency>
             <groupId>io.smallrye.reactive</groupId>