Prepare release v3.0.0 - Done manually without using polyglot-release #8

Job	Run time
pre-release-check / Check commit ancestor	3s
test / test (2.6, rails_5_2)	5m 37s
test / test (2.7, rails_5_2)	6m 30s
test / test (2.7, rails_6_0)	7m 46s
test / test (2.7, rails_6_1)	5m 31s
test / test (3.0, rails_7_0)	7m 46s
test / test (3.0, rails_7_1)	7m 12s
test / test (3.1, rails_7_0)	5m 47s
test / test (3.1, rails_7_1)	8m 10s
test / test (3.2, rails_7_0)	8m 28s
test / test (3.2, rails_7_1)	6m 53s
Publish Ruby Gem	6s
Create GitHub Release and Git tag	7s
	1h 9m 56s

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