[moz-nss-nspr] Cron <kuix at kuix-cloud> $HOME/watch-hg/announce/announce.sh mailing

[Automatic Mozilla, NSS and NSPR version announcements]

News: Mozilla, NSPR and/or NSS library versions changed.
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The COMM version of branch comm-esr60 changed from 60.5.3 to 60.5.4
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Gecko repo--revision on branch comm-beta changed from releases/mozilla-beta--bce0092f646c to releases/mozilla-beta--42bac7964f74
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