Changed 'indent-sequences:' from "consistent" to "true" in .ymllint.yml file. Fixed affected advisories. #1409

	name: CI

	on:
	push:
	branches: [ master ]
	pull_request:
	branches: ['**']

	jobs:
	tests:
	runs-on: ubuntu-latest
	name: Linter
	steps:
	- uses: actions/checkout@v3
	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: 3.8
	- name: Install yamllint
	run: \|
	python -m pip install --upgrade pip
	pip install yamllint
	- name: Lint YAML files
	run: yamllint gems rubies
	- name: Set up Ruby
	uses: ruby/setup-ruby@v1
	with:
	ruby-version: 3.4
	- name: Install ruby dependencies
	run: bundle install --jobs 4 --retry 3
	- name: Validate YAML
	run: bundle exec rake lint

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