git: openjdk/skara: Avoid running the mailing list bridge too often

[Robin Westberg]

Changeset: b5f92284
Author:    Robin Westberg <rwestberg at openjdk.org>
Date:      2020-02-07 06:47:51 +0000
URL:       https://git.openjdk.java.net/skara/commit/b5f92284

Avoid running the mailing list bridge too often

Reviewed-by: ehelin

! bots/mlbridge/src/main/java/org/openjdk/skara/bots/mlbridge/CooldownQuarantine.java
! bots/mlbridge/src/main/java/org/openjdk/skara/bots/mlbridge/MailingListBridgeBot.java