Remove --public-path from build_script #12

Job	Run time
Tests (Ruby 3.1, gemfiles/rails_6_1.gemfile)	1m 48s
Tests (Ruby 3.1, gemfiles/rails_7_0.gemfile)	1m 0s
Tests (Ruby 3.1, gemfiles/rails_7_1.gemfile)	1m 13s
Tests (Ruby 3.1, gemfiles/rails_7_2.gemfile)	1m 18s
Tests (Ruby 3.1, gemfiles/rails_main.gemfile)	28s
Tests (Ruby 3.2, gemfiles/rails_6_1.gemfile)	1m 51s
Tests (Ruby 3.2, gemfiles/rails_7_0.gemfile)	1m 1s
Tests (Ruby 3.2, gemfiles/rails_7_1.gemfile)	1m 14s
Tests (Ruby 3.2, gemfiles/rails_7_2.gemfile)	1m 10s
Tests (Ruby 3.2, gemfiles/rails_main.gemfile)	1m 25s
Tests (Ruby 3.3, gemfiles/rails_6_1.gemfile)	1m 50s
Tests (Ruby 3.3, gemfiles/rails_7_0.gemfile)	1m 5s
Tests (Ruby 3.3, gemfiles/rails_7_1.gemfile)	1m 15s
Tests (Ruby 3.3, gemfiles/rails_7_2.gemfile)	1m 19s
Tests (Ruby 3.3, gemfiles/rails_main.gemfile)	1m 58s
	19m 55s

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