fix(deps): bump org.yaml:snakeyaml from 2.1 to 2.2

Bumps [org.yaml:snakeyaml](https://bitbucket.org/snakeyaml/snakeyaml) from 2.1 to 2.2.
- [Commits](https://bitbucket.org/snakeyaml/snakeyaml/branches/compare/snakeyaml-2.2..snakeyaml-2.1)

---
updated-dependencies:
- dependency-name: org.yaml:snakeyaml
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

pom.xml

@@ -304,7 +304,7 @@
       <dependency>
          <groupId>org.yaml</groupId>
          <artifactId>snakeyaml</artifactId>
-         <version>2.1</version>
+         <version>2.2</version>
       </dependency>
       <dependency>
          <groupId>net.sf.jstuff</groupId>