upate(k8s-metacollector): update the chart's info

[alacuku]

What type of PR is this?

Uncomment one (or more) /kind <> lines:

/kind bug

/kind cleanup

/kind design

/kind documentation

/kind failing-test

/kind feature

If this PR will release a new chart version please make sure to also uncomment the following line:

/kind chart-release

Any specific area of the project related to this PR?

Uncomment one (or more) /area <> lines:

/area falco-chart

/area falco-exporter-chart

/area falcosidekick-chart

/area event-generator-chart

What this PR does / why we need it:

Update the chart's info and add the work-in-progress disclaimer in the README.md file.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Checklist

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

[leogr]

Thank you!

[poiana]

LGTM label has been added.

Git tree hash: c2f28dff5d41d0a99716f60b363c94d9bb91fd1f

[poiana]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: alacuku, leogr

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [leogr]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment