Request to have gradle agent image

[JohnNiang]

Gradle becomes more and more popular and many projects are using gradle as their build tool, such as Spring Boot, Halo, all Android applications and so on.

• https://gradle.org/maven-vs-gradle/
• https://docs.gradle.org/current/userguide/what_is_gradle.html

/kind feature-request /area devops /priority medium

[yuezhuangshi]

/assign