Fix unknown pkce method error when configured #493

Job	Run time
ruby_edge (gemfiles/rails_6_0.gemfile)	36s
Ruby 3.0 (gemfiles/rails_6_0.gemfile)	37s
rails_edge	26s
ruby_edge (gemfiles/rails_6_1.gemfile)	34s
Ruby 3.0 (gemfiles/rails_6_1.gemfile)	40s
Ruby 3.0 (gemfiles/rails_7_0.gemfile)	40s
ruby_edge (gemfiles/rails_7_0.gemfile)	26s
Ruby 3.0 (gemfiles/rails_7_1.gemfile)	34s
ruby_edge (gemfiles/rails_7_1.gemfile)	38s
Ruby 3.1 (gemfiles/rails_6_0.gemfile)	45s
Ruby 3.1 (gemfiles/rails_6_1.gemfile)	38s
Ruby 3.1 (gemfiles/rails_7_0.gemfile)	41s
Ruby 3.1 (gemfiles/rails_7_1.gemfile)	42s
Ruby 3.2 (gemfiles/rails_6_0.gemfile)	37s
Ruby 3.2 (gemfiles/rails_6_1.gemfile)	41s
Ruby 3.2 (gemfiles/rails_7_0.gemfile)	35s
Ruby 3.2 (gemfiles/rails_7_1.gemfile)	35s
Ruby 3.3 (gemfiles/rails_6_0.gemfile)	34s
Ruby 3.3 (gemfiles/rails_6_1.gemfile)	35s
Ruby 3.3 (gemfiles/rails_7_0.gemfile)	34s
Ruby 3.3 (gemfiles/rails_7_1.gemfile)	35s
	12m 43s

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