chore: bump version to 0.8.3-beta

Module renaming completed:
- InitialGuess → Init module
- OptimalControlPreInit → PreInitialGuess type
- All tests passing (3146/3146)
- Ready for merge to develop

Author: ocots

Project.toml

@@ -1,6 +1,6 @@
 name = "CTModels"
 uuid = "34c4fa32-2049-4079-8329-de33c2a22e2d"
-version = "0.8.2-beta"
+version = "0.8.3-beta"
 authors = ["Olivier Cots <olivier.cots@toulouse-inp.fr>"]
 
 [deps]