Fix frozen string error when forcing request body encoding #573

	name: CI
	on: [push]

	jobs:
	rubocop:
	runs-on: ubuntu-latest
	steps:
	- name: checkout repository
	uses: actions/checkout@v4
	- name: set up Ruby
	uses: ruby/setup-ruby@v1
	with:
	bundler-cache: true
	- name: Rubocop
	run: bundle exec rubocop

	bundle-audit:
	runs-on: ubuntu-latest
	steps:
	- name: checkout repository
	uses: actions/checkout@v4
	- name: set up Ruby
	uses: ruby/setup-ruby@v1
	with:
	bundler-cache: true
	- name: bundle-audit
	run: bundle exec bundle-audit update && bundle exec bundle-audit

	rspec:
	runs-on: ubuntu-latest
	steps:
	- name: checkout repository
	uses: actions/checkout@v4
	- name: set up Ruby
	uses: ruby/setup-ruby@v1
	with:
	bundler-cache: true
	- name: bundle install
	run: \|
	bundle config path vendor/bundle
	bundle install --jobs 4 --retry 3
	- name: rspec
	run: bundle exec rspec

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