INFRA-2867-Added chore prefix to PR, await for create release, remove commits.csv from changelog pr

[XxdpavelxX]

Ticket: https://consensyssoftware.atlassian.net/browse/INFRA-2867
Added release prefix to PR, await for create release, remove commits.csv from changelog pr, add commits.csv to workflow artifacts

The Github Action doesn’t inform us when [createReleaseSheet](https://github.com/MetaMask/github-tools/blob/dde6d530bebae07d1e50180894ab2cac64170a2c/.github/scripts/update-release-sheet.mjs#L313) succeeds or fails, we should add an ‘await’ in front of it.
The changelog PR shall not include ‘commits.csv’ as we have here: [MetaMask/metamask-extension@](https://github.com/MetaMask/metamask-extension/commit/e6be418e07eb04d47ce7dd07432a2136382f1180#r2254840331)e6be418[#r2254840331](https://github.com/MetaMask/metamask-extension/commit/e6be418e07eb04d47ce7dd07432a2136382f1180#r2254840331)
The title of the version bump PR created by the Github Action doesn’t respect conventional commits format, which makes the CI fail. It should be prefixed with release: .

Tested here: https://github.com/consensys-test/metamask-extension-test-workflow2/actions/runs/17270524861/job/49013733053, https://github.com/consensys-test/metamask-extension-test-workflow2/actions/runs/17272422001
consensys-test/metamask-extension-test-workflow2#28 (No commits.csv)
consensys-test/metamask-extension-test-workflow2#32 (Added release prefix)
https://github.com/consensys-test/metamask-extension-test-workflow2/actions/runs/17272422001 (commits.csv workflow artifact)

[gauthierpetetin]

I reached out to @jvbrioneson Slack to confirm he's fine with this removal.

[gauthierpetetin]

This is dead code that will be removed by @jvbriones (the entire file).

[XxdpavelxX]

Ok, I will leave it here for now then until it's removed if there's no objections.