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冰雪殇璃陌梦 authored and GitHub committed fc9146e09fe
Upgrade CI to Ubuntu 20.04 LTS (Focal) (#1183) # Why On one hand Ubuntu18's free LTS cycle is ended, and on the other hand Ubuntu18 does not support nodejs greater than v18. # What's changed. 1. update the Linux Docker image to buildpack-deps:focal 2. some compatibility changes 3. use the new recommended way to install Docker ([see here](https://docs.docker.com/engine/install/ubuntu/)) See #1173