chore(gha): auto-create issue for release

[danyalprout]

Description

We should update the GHA (probably version sync), to also create a GH issue for cutting the final release. Suggested template:

chore(release): create v{version} release

### TODO
[ ] Create a RC [release](https://github.com/base/node-reth/actions/workflows/create-release.yml)
[ ] Deploy to our devnet
[ ] Deploy to development mainnet nodes
[ ] Deploy to testnet
[ ] Create a final [release](https://github.com/base/node-reth/actions/workflows/create-release.yml)

Bonus points if we can auto-assign the ticket to whoever ran the release job.