Bump org.yaml:snakeyaml from 1.30 to 2.0 in /ios

Bumps [org.yaml:snakeyaml](https://bitbucket.org/snakeyaml/snakeyaml) from 1.30 to 2.0.
- [Commits](https://bitbucket.org/snakeyaml/snakeyaml/branches/compare/snakeyaml-2.0..snakeyaml-1.30)

---
updated-dependencies:
- dependency-name: org.yaml:snakeyaml
  dependency-type: direct:production
...

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

Author: dependabot[bot]

ios/pom.xml

@@ -5,7 +5,7 @@
     <artifactId>jbehave-browserstack</artifactId>
     <version>1.0.0</version>
     <properties>
-        <snakeyml.version>1.30</snakeyml.version>
+        <snakeyml.version>2.0</snakeyml.version>
         <embedder.default>com.browserstack.single.SampleEmbedder</embedder.default>
         <stories.default>stories/sample.story</stories.default>
     </properties>