Use Java 8 SDK for branch 3.0 / 4.0 and Java 11 for master

[khorshuheng]

Since #451, the master branch is using Java 11 SDK for prow. However, this result in test breaking on branch 4.0, which is not compatible with Java 11.

This PR will add Java 8 prow jobs exclusively for branch 4.0.

[woop]

Just wondering about 0.3 (that the Agoda folks are still using). Should that be included here?

[davidheryanto]

I think for postsubmits jobs for both publish-java-8-sdk and publish-java-sdk we want them to run when a new release tag with syntax v[SEMANTIC_VERSION] ONLY, so we need to modify the branches filter a bit.

[davidheryanto]

/lgtm

[davidheryanto]

/lgtm

[davidheryanto]

/approve

[feast-ci-bot]

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[feast-ci-bot]

@khorshuheng: Updated the config configmap in namespace default at cluster default using the following files:

• key config.yaml using file .prow/config.yaml

In response to this:

Since #451, the master branch is using Java 11 SDK for prow. However, this result in test breaking on branch 4.0, which is not compatible with Java 11.

This PR will add Java 8 prow jobs exclusively for branch 4.0.

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