taskotron-client: make sure tmpfiles don't erase our dirs

tmpfiles daemon used to delete /var/tmp/taskotron which we don't want

roles/taskotron/taskotron-client/files/tmpfiles-taskotron.conf

@@ -0,0 +1,8 @@
+# Configure tmpfiles for Taskotron use. Read 'man 5 tmpfiles.d' to understand
+# how it works exactly.
+
+
+#Type   Path                            Mode UID  GID  Age      Argument
+
+# Make sure /var/tmp/taskotron is ignored and never removed. Contents can be.
+X       /var/tmp/taskotron              -    -    -    1w       -

roles/taskotron/taskotron-client/tasks/main.yml

@@ -1,4 +1,8 @@
 ---
+- name: install tmpfiles.d Taskotron config
+  copy: src=tmpfiles-taskotron.conf dest=/etc/tmpfiles.d/taskotron.conf owner=root group=root mode=0600
+  when: deployment_type != 'local'
+
 - name: ensure packages required for libtaskotron are installed
   dnf: name={{ item }} state=present
   with_items: