Bump org.yaml:snakeyaml from 1.33 to 2.2 (#829)

Bumps [org.yaml:snakeyaml](https://bitbucket.org/snakeyaml/snakeyaml) from 1.33 to 2.2.
- [Commits](https://bitbucket.org/snakeyaml/snakeyaml/branches/compare/snakeyaml-2.2..snakeyaml-1.33)

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

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planetiler-openmaptiles.pom.xml

@@ -25,7 +25,7 @@
     <dependency>
       <groupId>org.yaml</groupId>
       <artifactId>snakeyaml</artifactId>
-      <version>1.33</version>
+      <version>2.2</version>
     </dependency>
     <dependency>
       <groupId>org.commonmark</groupId>