Farea for Snippet test

[yegor256]

See #2660

Here, I introduce Farea that simplifies Maven plugin testing: https://github.com/yegor256/farea

---

PR-Codex overview

This PR focuses on updating dependencies, disabling failing tests and making minor code changes.

Detailed summary

• Updated dependency to farea version 0.0.11
• Disabled failing tests in org.eolang.maven.it.SnippetTestCase
• Made minor code changes in org.eolang.maven.it.SnippetTestCase

✨ Ask PR-Codex anything about this PR by commenting with /codex {your question}