build(deps): bump io.nats:jnats from 2.15.3 to 2.17.3

Bumps [io.nats:jnats](https://github.com/nats-io/nats.java) from 2.15.3 to 2.17.3.
- [Release notes](https://github.com/nats-io/nats.java/releases)
- [Changelog](https://github.com/nats-io/nats.java/blob/main/CHANGELOG.md)
- [Commits](nats-io/nats.java@2.15.3...2.17.3)

---
updated-dependencies:
- dependency-name: io.nats:jnats
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

plc4j/examples/hello-nats/pom.xml

@@ -45,7 +45,7 @@
     <dependency>
       <groupId>io.nats</groupId>
       <artifactId>jnats</artifactId>
-      <version>2.15.3</version>
+      <version>2.17.3</version>
     </dependency>
 
     <dependency>