A very mixed bag of improvements

For a change this time I am playing it lazy and not splitting up anything as I usually do:

• 6b50f3ba docker: Build image with all the deps to run ansible-playbook
• ba0f4350 gitlab-ci: Lint check all the playbooks
• 6ece9737 README: Use bullet points for the steps for the Vault token
• 3b656d75 ansible: Print the timing of tasks
• 7c5e52cf ansible: Use the more legible YAML output
• 7bfec3d7 ansible: Make retry debug messages readable on dark terminals
• fb654998 Ignore spurious changes checking out Helm git repositories
• 6f516c3c qa-report-app: Fix redeployment by setting postgres-password
• c022318c apertis-snapshot-service: Get the chart via HTTPS
• 7bdf5363 traefik: Explicitly use the correct k8s context
• 606d252c traefik: Pin the current chart version

Let me know what I should move to dedicated MRs. :)