Added an event for defalult rule "Polkit Local Privilege Escalation Vulnerability (CVE-2021-4034)"

[GLVSKiriti]

What type of PR is this?

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

/kind bug

/kind cleanup

/kind documentation

/kind tests

/kind feature

Any specific area of the project related to this PR?

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

/area commands

/area pkg

/area events

What this PR does / why we need it: Added an event for defalult rule "Polkit Local Privilege Escalation Vulnerability (CVE-2021-4034)" as mentioned here

Which issue(s) this PR fixes:

Fixes #149

Special notes for your reviewer:

[leogr]

Closing and reopening to trigger the CI

[leogr]

/reopen

[poiana]

@leogr: Reopened this PR.

In response to [this](https://github.com/falcosecurity/event-generator/pull/156#issuecomment-2173815228): >/reopen Instructions for interacting with me using PR comments are available [here](https://git.k8s.io/community/contributors/guide/pull-requests.md). If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes/test-infra](https://github.com/kubernetes/test-infra/issues/new?title=Prow%20issue:) repository.

[poiana]

LGTM label has been added.

Git tree hash: 6a90a3299554faa7b92c3a58ef0562bd02bb2b0d

[poiana]

[APPROVALNOTIFIER] This PR is APPROVED

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

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Needs approval from an approver in each of these files: - ~~[OWNERS](https://github.com/falcosecurity/event-generator/blob/main/OWNERS)~~ [leogr] Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment