Bump jetcd-test from 0.5.4 to 0.7.3

Bumps [jetcd-test](https://github.com/etcd-io/jetcd) from 0.5.4 to 0.7.3.
- [Release notes](https://github.com/etcd-io/jetcd/releases)
- [Changelog](https://github.com/etcd-io/jetcd/blob/main/CHANGELOG.md)
- [Commits](etcd-io/jetcd@jetcd-0.5.4...jetcd-0.7.3)

---
updated-dependencies:
- dependency-name: io.etcd:jetcd-test
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

ext/ext-api/api-etcd/pom.xml

@@ -129,7 +129,7 @@
 		<dependency>
 			<groupId>io.etcd</groupId>
 			<artifactId>jetcd-test</artifactId>
-			<version>0.5.4</version>
+			<version>0.7.3</version>
 		</dependency>
 		<!-- / Etcd dependencies -->