* Revert "v7.12.0 release"
This reverts commit 073723cb4d41187f839fbb46565d109293fa22d7.
* set version to v7.13.0-SNAPSHOT
* update samples
* update doc
* [csharp][generichost] fix SYSLIB1045 for ClientUtils
* make JsonRegex private
* on net7 and above use GeneratedRegex for JsonRegex
* remove unused SanitizeFilename-Method
* [csharp][generichost] regenerate samples
* add .net9 support
* fixed path of new sample
* comment out manual test that does not exist
* comment out manual test that does not exist
* comment out manual test that does not exist
* fixed missing output
* bug fix
* add new sample
* build samples again
* delete sample
* move the sample and add to github workflow
* remove model not needed for this test
* handle specs with no models
* better handling of duplicate operation ids
* fixed mistake in resolving conflicts
* build samples again
* revert a change sent in another pr
* fixed missing output
* bug fix
* add new sample
* build samples again
* delete sample
* move the sample and add to github workflow
* remove model not needed for this test
* handle specs with no models
