Byon should avoid using deprecated snakeyaml Loader class

The byon API fails to work with newer snakeyaml versions (e.g. when newer snakeyaml dependency is introduced by other library).

The error is following.

java.lang.NoClassDefFoundError: org/yaml/snakeyaml/Loader

The problem is, the byon uses snakeyaml version 1.11 which still contains deprecated Loader class. The functionality provided originally by the Loader is already directly in the Yaml class. The deprecated class was removed in snakeyaml 1.15. The current version is 1.17.

I suggest to fix the problem and upgrade the dependency to the latest snakeyaml.