Update Helm release metallb to v2.6.8

See merge request !871

Update dependency paramiko to v2.10.1

See merge request !872

Update Helm release kube-prometheus-stack to v33.2.1

See merge request !873

Update Helm release wordpress to v0.6.5

See merge request stackspin/stackspin!868

Update Helm release mariadb to v10.4.0

See merge request stackspin/stackspin!867

Update dependency dnspython to v2.2.1

See merge request stackspin/stackspin!863

Update dependency kubernetes to v23

See merge request stackspin/stackspin!859

Update Helm release ingress-nginx to v4.0.18

See merge request stackspin/stackspin!862

Update Helm release kube-prometheus-stack to v33.2.0

See merge request stackspin/stackspin!858

Update Helm release nextcloud-onlyoffice to v0.7.7

See merge request stackspin/stackspin!856

Fix links in troubleshooting docs

See merge request stackspin/stackspin!870

Resolve "Do not fire ContainerMemoryUsage alert for unlabelled metrics"

Closes #1170

See merge request stackspin/stackspin!865

Resolve "Release version 0.8"

Closes #1131

See merge request stackspin/stackspin!866

reduce retries of tests to prevent running into 1h timeout. Fix "new document" button text in Nextcloud taiko test

TRIGGER_JOBS=enable-monitoring,enable-nextcloud,enable-velero,enable-wekan,enable-wordpress,enable-zulip

Resolve "Document alertmanager emails and what they mean"

Closes #1169

See merge request stackspin/stackspin!864

Fixes: #1169

Resolve "k3s.yml can be broken by running the playbook several times"

Closes #1014

See merge request stackspin/stackspin!861

Fixes: #1014

Mitogen seems dead (last release Dec 2020), and ansible-core 2.9.x is EOL
in May 2022 (https://docs.ansible.com/ansible/devel/reference_appendices/release_and_maintenance.html#ansible-core-changelogs).

Resolve "Installation try out"

See merge request stackspin/stackspin!860

edit install_stackspin.rst to make it harder to skip steps. Also add (re)activating your virtualenv to those instructions

move all provisioninig machine prerequisites into one place, make distinction between provisioning and VPS clearer