Update common role

- Add secure-secure-shell task
- Add unattended-upgrades task
- Change package installation tasks
- Remove website tasks from generic services group

roles/common/defaults/main.yml

@@ -0,0 +1,24 @@
+---
+common_expected_packages:
+  - curl
+  - git
+  - python-virtualenv
+  - python3-virtualenv
+  - wget
+ssh_match_blocks: []
+unattended_upgrades_mail: false
+unattended_upgrades_origins:
+  - o=${distro_id},n=${distro_codename},l=Debian-Security
+  - o=${distro_id},n=${distro_codename}-updates
+  - o=${distro_id},n=${distro_codename}-backports
+unattended_upgrades_reboot: "false"
+unattended_upgrades_reboot_time: "07:00"
+user_sanity_packages:
+  - htop
+  - less
+  - mosh
+  - nano
+  - screen
+  - tree
+  - vim
+  - zsh