As a plugin developer you can use this plugin as dependency of your plugin by adding a dependency tag to your POM.
To add the latest version of this plugin as a maven dependency, use the following:
<dependency>
<groupId>io.jenkins.plugins</groupId>
<artifactId>gcp-java-sdk-auth</artifactId>
<version>26.23.0-22.v3f07d8d61c3e</version>
</dependency>