Add slack notifications for IBIO reinstall job

[carbonin]

@eranco74 @giladravid16

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

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[openshift-ci-robot]

[REHEARSALNOTIFIER]
@carbonin: no rehearsable tests are affected by this change

Interacting with pj-rehearse

Comment: /pj-rehearse to run up to 5 rehearsals
Comment: /pj-rehearse skip to opt-out of rehearsals
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Comment: /pj-rehearse network-access-allowed to allow rehearsals of tests that have the restrict_network_access field set to false. This must be executed by an openshift org member who is not the PR author

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[openshift-ci]

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