[DRE-maint] ruby-icalendar is marked for autoremoval from testing

[Debian testing autoremoval watch]

ruby-icalendar 2.8.0-1 is marked for autoremoval from testing on 2022-11-23

It (build-)depends on packages with these RC bugs:
1019632: ruby-ice-cube: FTBFS with ruby3.1: ERROR: Test "ruby3.1" failed:       Failure/Error: expect(YAML.load(symbol_yaml)).to eq(YAML.load(string_yaml))
 https://bugs.debian.org/1019632



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https://salsa.debian.org/release-team/release-tools/-/blob/master/mailer/mail_autoremovals.pl

Autoremoval data is generated by:
https://salsa.debian.org/qa/udd/-/blob/master/udd/testing_autoremovals_gatherer.pl