Add nrrso to knative orgs

[creydr]

@nrrso was added as a SC member in #1521.
We missed to add him to the knative orgs, which leads to invalid-owners errors on the Update community files PRs (e.g. knative/eventing#7787 (comment)).

This PR adds @nrrso as a member to the knative and knative-extensions orgs.

/assign @aliok

[knative-prow]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: creydr
Once this PR has been reviewed and has the lgtm label, please assign psschwei for approval. For more information see the Kubernetes Code Review Process.

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Needs approval from an approver in each of these files:

• peribolos/OWNERS

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[knative-prow]

@creydr: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-knative-extensions-peribolos	739102e	link	true	/test pull-knative-extensions-peribolos
pull-knative-peribolos	739102e	link	true	/test pull-knative-peribolos

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[creydr]

/hold
as already in the admin list.
See https://cloud-native.slack.com/archives/C04LY4M2G49/p1710407812444999

[creydr]

Closing as @nrrso is in admins list already