Introduce optional threat modeling for security-related topics.

[ScheererJ]

How to categorize this PR?

/kind enhancement

What this PR does / why we need it:

Introduce optional threat modeling for security-related topics.

As discussed and agreed in the technical steering committee meeting on August 13th, proposals touching security-related areas, e.g. credentials or authentication/authorisation, may need an additional round of vetting for security risks.

Which issue(s) this PR fixes:
Fixes #

Special notes for your reviewer:

/cc @rfranzke @vpnachev @timebertt

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[rfranzke]

/lgtm

[gardener-prow]

LGTM label has been added.

Details

Git tree hash: 0fd60c09a0044411633cfeafa9353d90474c45c6

[JordanJordanov]

/lgtm

[timebertt]

/lgtm

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@timebertt: adding LGTM is restricted to approvers and reviewers in OWNERS files.

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In response to this:

/lgtm

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[rfranzke]

/approve

[gardener-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: rfranzke

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• OWNERS [rfranzke]

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