ansible: Fix plugin initialization

ansible/Makefile

@@ -11,10 +11,11 @@ $(PLAYBOOKS) : init-plugins
 
 paradise : pontos anna antea arke pythia
 
-init-plugins: _plugins_stamp/v2
+init-plugins: _plugins_stamp/v3
 
-_plugins_stamp/v2 :
-	ansible-galaxy collection install -U community.general
+_plugins_stamp/v3 :
+	ansible-galaxy collection install community.general
+	ansible-galaxy collection list | grep -q 'ansible\.posix' || ansible-galaxy collection install ansible.posix
 	mkdir -p _plugins_stamp
 	touch $@