Increase Node requirement from 18 to 20 (current LTS) #372

Job	Run time
Rubocop	14s
Test / Ruby 3.1	46s
Test / Ruby 3.2	48s
Test / Ruby 3.3	50s
Test / Ruby head	3m 5s
Test / E2E / Rails current / default frontend / minitest	2m 0s
Test / E2E / Rails current / default frontend / rspec	1m 59s
Test / E2E / Rails current / vite frontend / minitest	1m 11s
Test / E2E / Rails current / vite frontend / rspec	1m 14s
Test / E2E / Rails edge / default frontend / minitest	2m 10s
Test / E2E / Rails main / default frontend / minitest	2m 10s
Test / E2E / Rails main / default frontend / rspec	2m 10s
Test / E2E / Rails main / vite frontend / minitest	2m 3s
Test / E2E / Rails main / vite frontend / rspec	2m 3s
Test / All	1s
	22m 44s

Provide feedback