Normalize tags in all places to prepare for tag fixing in future (#1739)

roles/bootstrap-os/tasks/bootstrap-coreos.yml

@@ -3,7 +3,8 @@
   raw: stat /opt/bin/.bootstrapped
   register: need_bootstrap
   failed_when: false
-  tags: facts
+  tags:
+    - facts
 
 - name: Bootstrap | Run bootstrap.sh
   script: bootstrap.sh
@@ -11,7 +12,8 @@
 
 - set_fact:
     ansible_python_interpreter: "/opt/bin/python"
-  tags: facts
+  tags:
+    - facts
 
 - name: Bootstrap | Check if we need to install pip
   shell: "{{ansible_python_interpreter}} -m pip --version"
@@ -20,7 +22,8 @@
   changed_when: false
   check_mode: no
   when: need_bootstrap.rc != 0
-  tags: facts
+  tags:
+    - facts
 
 - name: Bootstrap | Copy get-pip.py
   copy: