[FEATURE] Update to Go 1.21

[SaschaSchwarze0]

Is there an existing feature request for this?

• I have searched the existing feature requests

Is your feature request related to a problem or use-case? Please describe.

Go 1.20 is end of support already.

Describe the solution that you would like.

We should update go.mod and CI to use Go 1.21. PR should be similar to the last one.

Describe alternatives you have considered.

No response

Anything else?

No response

[SaschaSchwarze0]

/assign Adarsh-jaiss

[openshift-ci]

@SaschaSchwarze0: GitHub didn't allow me to assign the following users: Adarsh-jaiss.

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In response to this:

/assign Adarsh-jaiss

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.

[SaschaSchwarze0]

/assign Adarsh-jaiss