Add hash of komodo repository when writing manifest file

[berland]

In order to aid build reproducibility, add the hash of the komodo version used to build a release. This can go into the manifest file, or somewhere else in the release directory.

The manifest file possibly needs to be restructured in order to support meta-version like this, alternatively we can just pretend komodo itself is part of the build and include the version as such.

[sondreso]

We could also specify in the release file which version of komodo should be used to build the release. But this might be too cumbersome to keep up to date? 🤔