Adding missing gateway-httproute cluster role permission

[nicon89]

Description
Adds missing permissions (namespace) for gateway-api.

Fixes #[3537]

Checklist

• [ n/a ] Unit tests updated
• [ n/a ] End user documentation updated - documentation already mentions this permission in https://github.com/kubernetes-sigs/external-dns/blob/master/docs/tutorials/gateway-api.md#manifest-with-rbac

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: nicon89 / name: Piotr Kowalczyk (50b5268)

[k8s-ci-robot]

Welcome @nicon89!

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[stevehipwell]

@nicon89 could you sign the CLA? I'll approve the tests once you've done that.

[nicon89]

@stevehipwell I tried signing it as "individual contributor" few times - I don't get any error, but I still see it is missing CLA authorization.

[stevehipwell]

@nicon89 have you followed the guide to amend and sign (with -s) your commit once you've signed the CLA?

[stevehipwell]

@nicon89 it looks like your missing the sign off on you commit, you should be able to fix this by running git commit --amend --no-edit -s && git push --force-with-lease.

[nicon89]

/easycla

[stevehipwell]

@nicon89 did you sign the CLA with the email address on the commit?

[nicon89]

@stevehipwell sorry for troubles, it should be now okay.

[stevehipwell]

/ok-to-test

[szuecs]

/approve
/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: nicon89, szuecs

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• charts/OWNERS [szuecs]

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