Refine the comment for git init base image

[zhangtbj]

Changes

After the PR is merged: #3727
The git-init init image can be executed by as non-root user.

The original comment These base images run as root, xxx is not valid and will make user confuse.

Provide a PR to refine the comment for the git-init image

/kind misc

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[tekton-robot]

Hi @zhangtbj. Thanks for your PR.

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[ghost]

suggest git-init uses a base image that supports running either as root or as user nonroot with UID 65532

[zhangtbj]

Thanks for the suggestion @sbwsg !

Update by using this better one.

[ghost]

Good catch, thanks for fixing that!

[pritidesai]

/ok-to-test

[vdemeester]

/lgtm

[tekton-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: sbwsg, vdemeester

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