Enable tox linter in provision folder

[electrocucaracha]

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespaces from that line:

/kind bug
/kind cleanup
/kind design
/kind documentation
/kind failing-test

/kind feature

/kind flake

What this PR does / why we need it:
There are some linting rules which need to be applied to the e2e/provision folder every time that a new change is detected on that folder. This change provides a prow job to achive that.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:
The nephio/linter:1 docker image needs to be published before merging this patch.

Does this PR introduce a user-facing change?:

[nephio-prow]

@electrocucaracha: The label(s) kind/feature cannot be applied, because the repository doesn't have them.

In response to this:

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespaces from that line:

/kind bug
/kind cleanup
/kind design
/kind documentation
/kind failing-test

/kind feature

/kind flake

What this PR does / why we need it:
There are some linting rules which need to be applied to the e2e/provision folder every time that a new change is detected on that folder. This change provides a prow job to achive that.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:
The nephio/linter:1 docker image needs to be published before merging this patch.

Does this PR introduce a user-facing change?:

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.

[radoslawc]

/approve

[nephio-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: radoslawc

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[radoslawc]

/lgtm

[electrocucaracha]

@radoslawc did you build the image and publish it on the public registry?