CodeFast

https://blog.csdn.net/qq_39871579/article/details/124873495?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522166454453716800182785728%2522%252C%2522scm%2522%253A%252220140713.130212432.pc%255Fall.%2522%257D&request_id=166454453716800182785728&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~all~first_rank_ecpm_v1~rank_v31_ecpm-4-124873495-null-null.142^v51^opensearch_v2,201^v3^control&utm_term=Ubuntu%2020.04.1%20gitlab&spm=1018.2226.3001.4187

https://mirrors.tuna.tsinghua.edu.cn/help/gitlab-ce/

deb https://mirrors.tuna.tsinghua.edu.cn/gitlab-ce/ubuntu focal main
改成
deb http://mirrors.tuna.tsinghua.edu.cn/gitlab-ce/ubuntu focal main