Ensure run directory exists

This is usually also done in service scripts during startup but those
aren't always used in containers.  Doesn't hurt ensuring it here.

tasks/main.yml

@@ -23,6 +23,14 @@
   tags:
     - sshd
 
+- name: Run directory
+  file:
+    path: /var/run/sshd
+    state: directory
+    mode: 0755
+  tags:
+    - sshd
+
 - name: Configuration
   template:
     src: sshd_config.j2