Bump com.github.stellar:java-stellar-sdk from 2.0.0 to 2.1.0

Bumps [com.github.stellar:java-stellar-sdk](https://github.com/lightsail-network/java-stellar-sdk) from 2.0.0 to 2.1.0.
- [Release notes](https://github.com/lightsail-network/java-stellar-sdk/releases)
- [Changelog](https://github.com/lightsail-network/java-stellar-sdk/blob/master/CHANGELOG.md)
- [Commits](lightsail-network/java-stellar-sdk@2.0.0...2.1.0)

---
updated-dependencies:
- dependency-name: com.github.stellar:java-stellar-sdk
  dependency-version: 2.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pom.xml

@@ -28,7 +28,7 @@
     <dependency>
       <groupId>com.github.stellar</groupId>
       <artifactId>java-stellar-sdk</artifactId>
-      <version>2.0.0</version>
+      <version>2.1.0</version>
     </dependency>
 
     <dependency>