Bump io.appium:java-client from 9.3.0 to 9.4.0

Bumps [io.appium:java-client](https://github.com/appium/java-client) from 9.3.0 to 9.4.0.
- [Release notes](https://github.com/appium/java-client/releases)
- [Changelog](https://github.com/appium/java-client/blob/master/CHANGELOG.md)
- [Commits](appium/java-client@v9.3.0...v9.4.0)

---
updated-dependencies:
- dependency-name: io.appium:java-client
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pom.xml

@@ -17,7 +17,7 @@
         <phantomjsdriver.version>1.5.0</phantomjsdriver.version>
         <wdm.version>5.9.2</wdm.version>
         <testng.version>7.10.2</testng.version>
-        <appium-java-client.version>9.3.0</appium-java-client.version>
+        <appium-java-client.version>9.4.0</appium-java-client.version>
 
         <maven-surefire-plugin.version>3.5.2</maven-surefire-plugin.version>