fix 404 not found ppa apt-get update

fix apt-get update error install java8
Err:7 focal Release
404 Not Found [IP: 91.189.95.85 80] .

Concluzion: fix 404 not found ppa apt-get update – fix 404 not found ppa apt-get update,fix apt-get update error install java8,sendi novriadi

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