Implement platform specific build for jibDockerBuild task

[climategadgets]

Expected Behavior

./gradlew jibDockerBuild produces a usable container on any platform.

Actual Behavior

An attempt to run this task on a Raspberry Pi will result in the following message when starting the container:

WARNING: The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested

Root Cause

jibDockerBuild:multi-platform image building not supported when pushing to Docker engine

Workaround

Until a good solution is found, you'll have to uncomment a block of code to produce a valid container.

Final solution will be coming.