A0-4268: chain-bootstrapper CI

[Marcin-Radecki]

Description

This PR contains changes required for feature nets to work from main again. It also adds proper CI support for chain-bootstrapper. Workflows that build aleph-node were merged into one to avoid code duplication. The key subcommand was added to chain-bootstrapper—it does not increase compilation time and is used by the FE engine to bootstrap the chain. Also, there's better coupling between workflows as they output GH Artifact names that other workflows consume.

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)

Testing

Update net tests are omitted since they needs to be fixed on main anyway.

1. FE create from main - OK
2. FE created from Mainnet - OK
3. On push to main workflow test - OK
4. Nightly pipeline normal session e2e tests - OK
5. Nightly pipeline e2e tests on featurenet - OK

Actions before merge PR

Replace all A0-4268 and v6 to v7

Companion PRs

https://github.com/Cardinal-Cryptography/featurenet-template/pull/30
Cardinal-Cryptography/github-actions#49