Add default inventory directive to ansible.cfg

Add inventory = inventory.yml under [defaults] so that running
ansible-playbook deploy.yml without -i flag correctly targets
all hosts instead of silently skipping everything.

Closes #42

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: szachovy

CHANGELOG.md

@@ -26,6 +26,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 * Fixed `run_mysql_server()` not instantiating `MySQLServer` class. (#94)
 * Disabled MD060 markdownlint rule to fix table column style false positives in documentation. (#94)
+* Added default inventory directive to `ansible.cfg`. (#42)
 
 ## 1.0 - 2024-10-13
 

tests/testsuite/ansible.cfg

@@ -1,3 +1,4 @@
 [defaults]
+inventory = inventory.yml
 roles_path = ./roles
 forks = 32