Bump puppeteer-core from 19.11.1 to 20.0.0 #194

Job	Run time
Tests (2.6, rails_5.2, stable)	25s
Tests (2.6, rails_6.0, stable)	26s
Tests (2.6, rails_6.1, stable)	33s
Tests (2.7, rails_6.0, stable)	29s
Tests (2.7, rails_6.1, stable)	30s
Tests (2.7, rails_7.0, stable)	33s
Tests (3.0, rails_6.1, stable)	35s
Tests (3.0, rails_7.0, stable)	31s
Tests (3.1, rails_6.1, stable)	31s
Tests (3.1, rails_7.0, stable)	24s
Tests (3.2, rails_7.0, stable)	23s
Tests (2.7, rails_edge, experimental)	37s
Tests (3.0, rails_edge, experimental)	32s
Tests (3.1, rails_edge, experimental)	37s
Tests (3.2, rails_edge, experimental)	28s
Tests (head, rails_6.1, experimental)	31s
Tests (head, rails_7.0, experimental)	32s
Tests (head, rails_edge, experimental)	29s
Coverage	3s
	9m 9s

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