This PR fixes#6560.
The fix has a few elements:
1) Bumps the Engine requirement to the latest release, namely `2023.1.1`.
2) Changed the logic of checking whether a given version matches the requirement. Previously, we relied on `VersionReq` from `semver` crate which did not behave intuitively when the required version had a prerelease suffix. Now we rely directly on Semantic Versioning rules of precedence.
3) Code cleanups, including deduplicating 3 copies of the version-checking code, and moving some tests to more sensible places.
This PR changes build script's `ide watch` and `ide start` commands, so they don't use `electron-builder` to package. Instead, they invoke `electron` directly, significantly reducing time overhead.
`ide watch` will now start Electron process, while continuously rebuilding gui and the client in the background. Changes can be puilled by reloading within the electron, or closing the electron and letting it start once again. To stop, the script should be interrupted with `Ctrl+C`.
This PR updates the build script:
* fixed issue where program version check was not properly triggering;
* improved `git-clean` command to correctly clear Scala artifacts;
* added `run.ps1` wrapper to the build script that works better with PowerShell than `run.cmd`;
* increased timeouts to work around failures on macOS nightly builds;
* replaced depracated GitHub Actions APIs (set-output) with their new equivalents;
* workaround for issue with electron builder (python2 lookup) on newer macOS runner images;
* GUI and backend dispatches to cloud were completed;
* release workflow allows creating RC releases.
