Bump org.tinspin:tinspin-indexes from 1.7.1 to 2.1.0

Bumps [org.tinspin:tinspin-indexes](https://github.com/tzaeschke/tinspin-indexes) from 1.7.1 to 2.1.0.
- [Release notes](https://github.com/tzaeschke/tinspin-indexes/releases)
- [Changelog](https://github.com/tzaeschke/tinspin-indexes/blob/master/CHANGELOG.md)
- [Commits](tzaeschke/tinspin-indexes@tinspin-indexes-1.7.1...tinspin-indexes-2.1.0)

---
updated-dependencies:
- dependency-name: org.tinspin:tinspin-indexes
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

pom.xml

@@ -247,7 +247,7 @@
 		<dependency>
 			<groupId>org.tinspin</groupId>
 			<artifactId>tinspin-indexes</artifactId>
-			<version>1.7.1</version>
+			<version>2.1.0</version>
 		</dependency>
 		<dependency> <!-- for test running -->
 			<groupId>org.junit.jupiter</groupId>