fix: 404 errors for Jessie sources

Debian Jessie is no longer supported and its sources are different.
2023-04-24 03:32:07 +03:00 · 2023-04-24 03:32:07 +03:00 · 8768980654
--- a/2
+++ b/2
@ -1,6 +1,6 @@
 FROM ruby:2.3.5

-RUN printf "deb http://archive.debian.org/debian/ jessie main\ndeb-src http://archive.debian.org/debian/ jessie main\ndeb http://security.debian.org jessie/updates main\ndeb-src http://security.debian.org jessie/updates main" > /etc/apt/sources.list 
+RUN printf "deb http://archive.debian.org/debian/ jessie main" > /etc/apt/sources.list

 RUN apt-get -qq update && \
    apt-get -q -y upgrade && \