Update dependencies to newer versions

[tricube]

I wonder if there's any plan to update the Jackson-related dependencies to newer versions as the versions used in this project is quite outdated and some may have security issues, e.g.

https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind/2.9.10

There are PRs submitted by dependabot to update jackson-related dependencies to newer version:

• ⬆️ Bump jackson-databind from 2.9.10 to 2.12.7.1 #92
• ⬆️ Bump jackson.version from 2.9.10 to 2.12.2 #79

Thank you for your attention.