Heroku deploy fails, installing dpl-heroku encounters faraday error

Deployment
6

Confirming that I was able to get past a very similar issue:

ERROR: Error installing dpl-heroku:

1263 The last version of faraday (>= 0) to support your Ruby & RubyGems was 1.9.3. Try installing it with `gem install faraday -v 1.9.3` and then running the current command again

1264 faraday requires Ruby version >= 2.6. The current ruby version is 2.4.5.335.

by using - rvm $(travis_internal_ruby) --fuzzy do ruby -S gem install faraday -v 1.8.0 as suggested by @zopz.

example here…

...
before_deploy:
  - rvm $(travis_internal_ruby) --fuzzy do ruby -S gem install faraday -v 1.8.0
deploy:
  provider: heroku
  api_key: $HEROKU_API_KEY
...