Synchronize templates (#4040)
- Progresses https://github.com/paritytech/polkadot-sdk/issues/3155 ### What's inside A job, that will take each of the three [templates](https://github.com/paritytech/polkadot-sdk/tree/master/templates), yank them out of the monorepo workspace, and push to individual repositories ([1](https://github.com/paritytech/polkadot-sdk-minimal-template), [2](https://github.com/paritytech/polkadot-sdk-parachain-template), [3](https://github.com/paritytech/polkadot-sdk-solochain-template)). In case the build/test does not succeed, a PR such as [this one](https://github.com/paritytech-stg/polkadot-sdk-solochain-template/pull/2) gets created instead. I'm proposing a manual dispatch trigger for now - so we can test and iterate faster - and change it to fully automatic triggered by releases later. The manual trigger looks like this: <img width="340px" src="https://github.com/paritytech/polkadot-sdk/assets/12039224/e87e0fda-23a3-4735-9035-af801e8417fc"/> ### How it works The job replaces dependencies [referenced by git](https://github.com/paritytech/polkadot-sdk/blob/d733c77e/templates/minimal/pallets/template/Cargo.toml#L25) with a reference to released crates using [psvm](https://github.com/paritytech/psvm). It creates a new workspace for the template, and adapts what's needed from the `polkadot-sdk` workspace. ### See the results The action has been tried out in staging, and the results can be observed here: - [minimal stg](https://github.com/paritytech-stg/polkadot-sdk-minimal-template/) - [parachain stg](https://github.com/paritytech-stg/polkadot-sdk-parachain-template/) - [solochain stg](https://github.com/paritytech-stg/polkadot-sdk-solochain-template/) These are based on the `1.9.0` release (using `release-crates-io-v1.9.0` branch).