[rubygems/rubygems] Revert "Remove Gem::DependencyInstaller#find_gems_with_sources"
This reverts commit 04c79d3eb9d9803d9fae78575b125b325b97206e.
Final removal is postponed until next year until we find a better way to manage deprecations.
https://github.com/rubygems/rubygems/commit/3e1cf918a5
[rubygems/rubygems] Revert "Remove Gem::DependencyInstaller#find_gems_with_sources"
This reverts commit 04c79d3eb9d9803d9fae78575b125b325b97206e.
Final removal is postponed until next year until we find a better way to
manage deprecations.
https://github.com/rubygems/rubygems/commit/3e1cf918a5