ART-8472: make in fight not required

[Ximinhan]

Use release schedule API to get the release date and determine in fight release

test job:
gen-assembly job: https://saml.buildvm.hosts.prod.psi.bos.redhat.com:8888/job/hack/job/ximhan/job/build%252Fgen-assembly/2/
prepare release job: https://saml.buildvm.hosts.prod.psi.bos.redhat.com:8888/job/hack/job/ximhan/job/build%252Fprepare-release/13/

[openshift-ci-robot]

@Ximinhan: This pull request references ART-8472 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the story to target the "4.16.0" version, but no target version was set.

In response to this:

Use release schedule API to get the release date and determine in fight release

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[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[openshift-ci-robot]

@Ximinhan: This pull request references ART-8472 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the story to target the "4.16.0" version, but no target version was set.

In response to this:

Use release schedule API to get the release date and determine in fight release

test job:
gen-assembly job: https://saml.buildvm.hosts.prod.psi.bos.redhat.com:8888/job/hack/job/ximhan/job/build%252Fgen-assembly/2/
prepare release job: https://saml.buildvm.hosts.prod.psi.bos.redhat.com:8888/job/hack/job/ximhan/job/build%252Fprepare-release/13/

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the openshift-eng/jira-lifecycle-plugin repository.

[thegreyd]

Nice work ximin!
What do you think about getting release date in assembly definition? https://issues.redhat.com/browse/ART-3761
that way we can give an explicit +1 with gen-assembly

[Ximinhan]

I think add some log message to slack should have enough awearness

[thegreyd]

looks good with some minor comments 👍

[thegreyd]

/lgtm
/approve