Release v2.21.0 (#448)

This PR was created by the [Changie release GitHub
action](https://github.com/labd/changie-release-action). When you're
ready to do a release, you can merge this and the tag v2.21.0 will be
created and the release.yaml workflow will be started. If you're not
ready to do a release yet, that's fine, whenever you add more changes to
main, this PR will be updated.

# Releases
## v2.21.0 - 2024-10-08
### Added
* Added `github` and `json` logging options to change output 
* Added option to set global and site-level configurations. These will
be merged into the component variables during generation
* Added command to validate terraform configurations
* Added git-fallback option to cloud update command. Usage;
`mach-composer update --cloud --git-fallback`
### Fixed
* Continue with update proces even when commits / changelogs cannot be
fetched between old and new version
* Updated to latest SDK version
* Added a ticker when running go routines to show activity
### Dependency
* chore(deps): bump the github-actions group with 2 updates
* chore(deps): bump the go group with 2 updates

Author: demeyerthom

.changes/unreleased/Added-20240223-163007.yaml

@@ -0,0 +1,13 @@
+## v2.21.0 - 2024-10-08
+### Added
+* Added `github` and `json` logging options to change output 
+* Added option to set global and site-level configurations. These will be merged into the component variables during generation
+* Added command to validate terraform configurations
+* Added git-fallback option to cloud update command. Usage; `mach-composer update --cloud --git-fallback`
+### Fixed
+* Continue with update proces even when commits / changelogs cannot be fetched between old and new version
+* Updated to latest SDK version
+* Added a ticker when running go routines to show activity
+### Dependency
+* chore(deps): bump the github-actions group with 2 updates
+* chore(deps): bump the go group with 2 updates