Upgrade go version and code-generator in snapshotter client

[RaunakShah]

What type of PR is this?
/kind cleanup

What this PR does / why we need it:

This PR upgrades the version of Go and code-generator in the snapshotter client modules

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

Upgrade to go 1.18 and code-generator 0.25.1 in snapshotter client

[xing-yang]

@RaunakShah Have you re-run the script to update manifest and generate code?

[RaunakShah]

Have you re-run the script to update manifest and generate code?

Yup! ./hack/update-generated-code.sh caused the change to client/clientset/versioned/clientset.go and ./hack/update-crd.sh only made changes that need to be reverted as per the README - https://github.com/kubernetes-csi/external-snapshotter/tree/master/client/hack

[xing-yang]

Since you are here, can you also update all the other K8s dependencies?

k8s.io/api v0.24.3
k8s.io/apimachinery v0.24.3
k8s.io/client-go v0.24.3

[RaunakShah]

Done!

[xing-yang]

Just one comment. Looks good other than that.

[xing-yang]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: RaunakShah, xing-yang

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