Fixes for ansible-lint 6.5.0

The bulk of the diff consists of capitalizing the first letter of all task names. The rest is replacing skip_ansible_lint tags with noqa because ansible-lint 6.5.0 probably broke support for the former. (It's good practice to ignore specific rules anyway, so this change is for the better regardless of upstream bugs.)

playbooks/tasks/include/reencrypt-vault-key.yml

-- name: check if moreutils is installed
+- name: Check if moreutils is installed
   pacman: name=moreutils state=present
 
-- name: reencrypt vault {{ vault_id }} key
+- name: Reencrypt vault {{ vault_id }} key
   shell: |
     set -eo pipefail
     gpg --decrypt --batch --quiet "{{ playbook_dir }}/../../misc/vault-{{ vault_id }}-password.gpg" \