Update cluster-api to v1.6.1

[Prajyot-Parab]

What this PR does / why we need it:

• Update cluster-api to v1.6.1

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

Special notes for your reviewer:

/area provider/ibmcloud

1. Please confirm that if this PR changes any image versions, then that's the sole change this PR makes.

Release note:

Update cluster-api to v1.6.1

[netlify]

✅ Deploy Preview for kubernetes-sigs-cluster-api-ibmcloud ready!

Name	Link
🔨 Latest commit	e5b6df6
🔍 Latest deploy log	https://app.netlify.com/sites/kubernetes-sigs-cluster-api-ibmcloud/deploys/65a8e6ddcd0e61000797a63e
😎 Deploy Preview	https://deploy-preview-1585--kubernetes-sigs-cluster-api-ibmcloud.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[Prajyot-Parab]

/cc @mkumatag

[Prajyot-Parab]

/cherrypick release-0.7

[k8s-infra-cherrypick-robot]

@Prajyot-Parab: once the present PR merges, I will cherry-pick it on top of release-0.7 in a new PR and assign it to you.

In response to this:

/cherrypick release-0.7

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[mkumatag]

/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: mkumatag, Prajyot-Parab

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 [mkumatag]

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

[k8s-infra-cherrypick-robot]

@Prajyot-Parab: new pull request created: #1587

In response to this:

/cherrypick release-0.7

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.