Bump jackson.version from 2.11.3 to 2.12.1
Bump jackson.version from 2.11.3 to 2.12.1

Bumps `jackson.version` from 2.11.3 to 2.12.1.

Updates `jackson-databind` from 2.11.3 to 2.12.1
- [Release notes](https://github.com/FasterXML/jackson/releases)
- [Commits](https://github.com/FasterXML/jackson/commits)

Updates `jackson-datatype-guava` from 2.11.3 to 2.12.1
- [Release notes](https://github.com/FasterXML/jackson-datatypes-collections/releases)
- [Commits](https://github.com/FasterXML/jackson-datatypes-collections/compare/jackson-datatypes-collections-2.11.3...jackson-datatypes-collections-2.12.1)

Updates `jackson-datatype-jdk8` from 2.11.3 to 2.12.1

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
arteam/simple-json-rpc