Need to upgrade dependency for gradle-docker-plugin

[chrispauley]

Current build uses a version of gradel file uses a dockerBuildImage that creates the following error.

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':dockerBuildImage'.
> Failed to parse dockerCfgFile: /home/chris-pauley/.docker/config.json

When I upgraded to 3.2.1 the problem was resolved.

    dependencies {
        classpath 'com.bmuschko:gradle-docker-plugin:3.2.1'
    }

[GradedJestRisk]

Hi, looks similar to chris (fixed with version 3.2.1), but the error was "Could not build image: null"
The original fix is there => (bmuschko/gradle-docker-plugin#364

Successfully built 845a80dcbc2b
Successfully tagged hellojava:latest
:dockerBuildImage FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':dockerBuildImage'.
> Could not build image: null