Keep generated Deno lib in sync automatically

[obycode]

When a new version is released, there is nothing currently in place to automate the code generated in https://github.com/hirosystems/clarinet/blob/3a1ba93fa2fff4f9a0ee213edf493163ccbfdc65/components/clarinet-cli/src/generate/contract.rs#L79

We should be able to add something in the release script to do this for us, reading from an environment variable or something.

[lgalabru]

To be addressed in https://github.com/hirosystems/clarinet/pull/511