add quotes around octal values

YAML loaders will load them as strings, providing a consistent behavior. This is also safer as JSON does not support octal values either.

roles/bastion/tasks/ssh.yml

@@ -4,6 +4,6 @@
   copy:
     src: "ssh/"
     dest: "~/.ssh/"
-    mode: 0600
+    mode: "0600"
     directory_mode: true
   become_user: "{{ main_user }}"

roles/bastion/tasks/terraform.yml

@@ -4,7 +4,7 @@
   template:
     src: "tfvars_token.j2"
     dest: "~/.tfvars_token_dtsv"
-    mode: 0640
+    mode: "0640"
   become_user: "{{ main_user }}"
 
 - name: Add .tfvars_token to .bash_profile
@@ -12,5 +12,5 @@
     path: "~/.bash_profile"
     create: true
     line: "source ~/.tfvars_token_dtsv"
-    mode: 0644
+    mode: "0644"
   become_user: "{{ main_user }}"