[FEATURE] Auto update release notes and bump up version.properties after a release

[karenyrx]

Is your feature request related to a problem?

RELEASING.md documents a series of manual steps that must be taken after the GHA publishes a new protobufs release (namely step 4 to bump up version.properties and manually copy over the release notes)

This is sometimes prone to error / being forgotten, as exhibited in https://github.com/opensearch-project/opensearch-protobufs/pull/168/files, so it would be a good idea to evaluate if this step can be automated

What solution would you like?

Create a GHA that creates an automated PR after a release doing step 4 in RELEASING.md

Sample core GHA: https://github.com/opensearch-project/OpenSearch/blob/main/.github/workflows/auto-release.yml#L29

What alternatives have you considered?

N/A

Do you have any additional context?

Add any other context or screenshots about the feature request here.

[andrross]

Catch All Triage - 1 2