[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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Gecko repo--revision on branch comm-beta changed from releases/mozilla-beta--c850f93582ef95f2ca5dd2a1f37e3d475fa05cd7 (FIREFOX_87_0b4_RELEASE) to releases/mozilla-beta--5f4504d724a9cd1b200441903d6f14b065a5bbb6 (FIREFOX_87_0b8_RELEASE)
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