fix: [#106] mark doctest as no_run to prevent ansible-playbook dependency

Co-authored-by: josecelano <58816+josecelano@users.noreply.github.com>

Author: Copilot

src/adapters/ansible/mod.rs

@@ -66,7 +66,7 @@ impl AnsibleClient {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```rust,no_run
     /// # use torrust_tracker_deployer_lib::adapters::ansible::AnsibleClient;
     /// # let client = AnsibleClient::new("/path/to/config");
     /// // Run without extra args (backward compatible)