fix: pydjinni package swiftpackage

- strip VERSION file to avoid formatting issues of the version tag
- fix git cli calls

fix: publishing process (#50)

* fix: refactor execute command helper
* fix: language server on windows
* feat(ci): test publish package
* fix: swiftpackage packaging
* fix: create local nuget output dir if not exists yet

feat: improve comments, vscode support, improve language server (#46)

* feat: improve @throws comments: support for resolving error types
* feat: add more hover tooltips in language server
* feat: add vscode development support
* feat: add black formatter configuration
* feat: add javadoc compilation step to validate javadoc output
* feat: add clang-format codeformat style; improve cmake test structure
* feat: add language server multi-root project support
* feat: add language server intellisense support
* fix: don't allow `yaml` as language target in the idl
* fix: expected anonymous function typenames
* fix: report generated files as absolute paths
* fix: absolute file paths for cmake configure dependencies
* feat: add support for inline type references in idl comments

docs: update live demo example

fix(ci): update download-artifact

ci: improve actions naming

ci: undo TestPyPI release.

this was a dumb idea that turned out to be way harder to achieve than expected.

prepare for release