Merge pull request aaubry#621 from pensono/nullable-struct

+semver:fix Fix nullable struct serialization

Merge pull request aaubry#608 from premun/DefaultValuesOrEmpty

Allow omitting empty collections via `DefaultValuesHandling`
+semver:feature

aaubry#600 Fix nullable enum roundtrip

+semver:fix

Merge pull request aaubry#602 from meziantou/patch-1

Fix nullable annotations for AnchorName implicit converter

aaubry#563 Fix imutable pattern in EmitterSettings.SkipAnchorName

+semver:fix

Merge branch 'PANDATEEN-master' into master

+semver:feature

Add job to create a new release

Release notes are no longer stored in the repository.

Prepare release 9.1.4

Prepare release 9.1.3

Prepare release 9.1.2