Fix unknown pkce method error when configured #499

Job	Run time
rails_edge	14s
ruby_edge (gemfiles/rails_6_0.gemfile)	20s
Ruby 3.0 (gemfiles/rails_6_0.gemfile)	35s
ruby_edge (gemfiles/rails_6_1.gemfile)	20s
Ruby 3.0 (gemfiles/rails_6_1.gemfile)	31s
Ruby 3.0 (gemfiles/rails_7_0.gemfile)	43s
Ruby 3.0 (gemfiles/rails_7_1.gemfile)	24s
Ruby 3.1 (gemfiles/rails_6_0.gemfile)	28s
ruby_edge (gemfiles/rails_7_0.gemfile)	23s
Ruby 3.1 (gemfiles/rails_6_1.gemfile)	34s
ruby_edge (gemfiles/rails_7_1.gemfile)	22s
Ruby 3.1 (gemfiles/rails_7_0.gemfile)	35s
Ruby 3.1 (gemfiles/rails_7_1.gemfile)	29s
Ruby 3.2 (gemfiles/rails_6_0.gemfile)	28s
Ruby 3.2 (gemfiles/rails_6_1.gemfile)	30s
Ruby 3.2 (gemfiles/rails_7_0.gemfile)	27s
Ruby 3.2 (gemfiles/rails_7_1.gemfile)	37s
Ruby 3.3 (gemfiles/rails_6_0.gemfile)	38s
Ruby 3.3 (gemfiles/rails_6_1.gemfile)	40s
Ruby 3.3 (gemfiles/rails_7_0.gemfile)	39s
Ruby 3.3 (gemfiles/rails_7_1.gemfile)	32s
	10m 29s

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