Modularize reusable style workflow

[krsna-m]

This removes the logic from lint.yaml which is only for this repo, to reusable_style.yaml and modularizes out the logic into composite actions.

A follow up will be made to combine the old reusable style.yaml workflow with this new one.

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: kvmware

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [kvmware]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[krsna-m]

Seems like the github action linter does not like composite actions with inputs :/ Although, they clearly work...

[upodroid]

yeah, https://github.com/rhysd/actionlint has many changes since last version has been cut

[krsna-m]

rhysd/actionlint#46 looks like composite action linting is not supported yet :(

[upodroid]

/lgtm