chore(vdev): better formatting with nightly features (#23734)

* chore(vdev): better formatting with nightly features

* pass all and add to contributing guide

* currently we only want imports_granularity

* contributing

* PR template improvements

* license building updates

* Update .github/PULL_REQUEST_TEMPLATE.md

Co-authored-by: Thomas <thomas.schneider@datadoghq.com>

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Co-authored-by: Thomas <thomas.schneider@datadoghq.com>