update deps to build example

[camandel]

After bump to v10 the hostpath-provisioner example could not be compiled:

$ make
go mod tidy
go: errors parsing go.mod:
go.mod:10:2: require sigs.k8s.io/sig-storage-lib-external-provisioner/v10: version "v9.0.1" invalid: should be v10, not v9
make: *** [Makefile:20: dep] Error 1

I've aligned example dependencies to the same of main library.

[linux-foundation-easycla[bot]]

The committers listed above are authorized under a signed CLA.

• :white_check_mark: login: camandel / name: Carlo Mandelli (0d2dd19c7f6b32f0664dc1769a466558a4066138)

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[k8s-ci-robot]

Hi @camandel. Thanks for your PR.

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[sunnylovestiramisu]

https://github.com/kubernetes-sigs/sig-storage-lib-external-provisioner/blob/master/go.mod

Already updated in master branch.

/close

[k8s-ci-robot]

@sunnylovestiramisu: Closed this PR.

In response to [this](https://github.com/kubernetes-sigs/sig-storage-lib-external-provisioner/pull/161#issuecomment-1869616875): >https://github.com/kubernetes-sigs/sig-storage-lib-external-provisioner/blob/master/go.mod > >Already updated in master branch. > >/close Instructions for interacting with me using PR comments are available [here](https://git.k8s.io/community/contributors/guide/pull-requests.md). If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes/test-infra](https://github.com/kubernetes/test-infra/issues/new?title=Prow%20issue:) repository.