Install fails on system with ipv6 first

[zamentur]

Describe the bug

Unable to install or restore discourse.
Seems there are some errors with IPv6 and rubygems.org website.

Context

• Hardware: VPS ARN
• YunoHost version: 11.x
• I have access to my server: in all way
• Are you in a special context or did you perform some particular tweaking on your YunoHost instance?: no

Steps to coturn this issues

Configure ipv4 first instead of ipv6 first by editing /etc/gai.conf

Logs

same errors with install or restore operation

sudo -u discourse --login MAKEFLAGS=-j2 bin/bundle install --jobs 2
Info: DEBUG - Fetching source index from https://rubygems.org/
Info: WARNING - Network error while fetching https://rubygems.org/quick/Marshal.4.8/bootsnap-1.9.4.gemspec.rz (Net::OpenTimeout)