[WIP] [Falco 0.37.0] cleanup(falco): remove --userspace flag

[Andreagit97]

What type of PR is this?

/kind cleanup

Any specific area of the project related to this PR?

/area falco-chart

What this PR does / why we need it:

This PR removes the --userspace flag from Falco helm chart

Which issue(s) this PR fixes:

Special notes for your reviewer:

Checklist

• Chart Version bumped
• Variables are documented in the README.md
• CHANGELOG.md updated

[poiana]

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[Andreagit97]

This PR is just to remind us that we need to remove the --userspace flag before releasing the helm chart, because it doesn't exist anymore. This PR will fail until we bump the Falco version in the helm chart since the new engine.kind config is supported only in Falco 0.37.0.

Some side notes:

• do we still need the --disable-source flag, now that we have kind.engine = none
• do we really need the block driver in the helm chart .yaml? why not use the new Falco config?

[Andreagit97]

do we really need the block driver in the helm chart .yaml? why not use the new Falco config?

In the end yes we need to keep it, because there are leastPrivileged and hostNetwork fields that are only inherent to the deployment of Falco

[Andreagit97]

done in #601