As a plugin developer you can use this plugin as dependency of your plugin by adding a dependency tag to your POM.
To avoid version conflicts it is suggested not to depend on a specific version, but use the Jenkins plugin BOM and the following dependency snippet:
<dependency>
<groupId>io.jenkins.plugins.aws-java-sdk2</groupId>
<artifactId>aws-java-sdk2-ecr</artifactId>
</dependency>