[Integrated] RFR: Do not send tag-related updates when in PR_ONLY mode

[Robin Westberg]

Changeset: 41b7e73b
Author:    Robin Westberg <rwestberg at openjdk.org>
Date:      2019-10-14 06:08:29 +0000
URL:       https://git.openjdk.java.net/skara/commit/41b7e73b

Do not send tag-related updates when in PR_ONLY mode

Reviewed-by: ehelin

! bots/notify/src/main/java/org/openjdk/skara/bots/notify/MailingListUpdater.java
! bots/notify/src/test/java/org/openjdk/skara/bots/notify/UpdaterTests.java