ci: add action for semantic PR titles and apply labels

[Adembc]

No description provided.

[google-oss-prow]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[jiridanek]

I think I'd prefer a conventional commit bot over this. There's 21.5k lines of Javascript in this PR, and only about 100 lines of it is handwritten, the rest are dependencies! Anyways, it does not look wrong to me, so

/lgtm

[google-oss-prow]

@jiridanek: changing LGTM is restricted to collaborators

In response to this:

I think I'd prefer a conventional commit bot over this. There's 21.5k lines of Javascript in this PR! Anyways, it does not look wrong to me, so

/lgtm

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[Adembc]

Thank you @jiridanek , for reviewing.
We discussed this issue in our last meeting and decided to create a new branch for the conventional-release-labels GHA code. @thesuperzapper will take care of this, and I will update this PR to reference it using kubeflow/notebooks/PATH@BRANCH.