Upgrade CI (#241)

* maintenance: dependabot
closes #205

* feature: exit code, closes #236

* build: upgrade dependencies

* test: test config

* test: improve codebase for new tests

* ci: upgrade ci workflow

* ci: drop 8.1 support

* docs: update badge links

README.md

@@ -8,10 +8,10 @@ Create multi-command terminal application with parameter requirements that are s
 <a href="https://github.com/PhpGt/Cli/actions" target="_blank">
 	<img src="https://badge.status.php.gt/cli-build.svg" alt="Build status" />
 </a>
-<a href="https://scrutinizer-ci.com/g/PhpGt/Cli" target="_blank">
+<a href="https://app.codacy.com/gh/PhpGt/Cli" target="_blank">
 	<img src="https://badge.status.php.gt/cli-quality.svg" alt="Code quality" />
 </a>
-<a href="https://scrutinizer-ci.com/g/PhpGt/Cli" target="_blank">
+<a href="https://app.codecov.io/gh/PhpGt/Cli" target="_blank">
 	<img src="https://badge.status.php.gt/cli-coverage.svg" alt="Code coverage" />
 </a>
 <a href="https://packagist.org/packages/PhpGt/Cli" target="_blank">