Bump yamlconfiguration from 1.2.0 to 1.2.1 (#7)

Bumps [yamlconfiguration](https://github.com/bspfsystems/YamlConfiguration) from 1.2.0 to 1.2.1.
- [Release notes](https://github.com/bspfsystems/YamlConfiguration/releases)
- [Commits](bspfsystems/YamlConfiguration@v1.2.0...v1.2.1)

---
updated-dependencies:
- dependency-name: org.bspfsystems:yamlconfiguration
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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impl/yaml/pom.xml

@@ -29,7 +29,7 @@
         <dependency>
             <groupId>org.bspfsystems</groupId>
             <artifactId>yamlconfiguration</artifactId>
-            <version>1.2.0</version>
+            <version>1.2.1</version>
             <scope>compile</scope>
         </dependency>