Bump tinylog-api from 2.5.0-M1.1 to 2.5.0-M2.1

Bumps [tinylog-api](https://github.com/tinylog-org/tinylog) from 2.5.0-M1.1 to 2.5.0-M2.1.
- [Release notes](https://github.com/tinylog-org/tinylog/releases)
- [Changelog](https://github.com/tinylog-org/tinylog/blob/v2.5/release.md)
- [Commits](https://github.com/tinylog-org/tinylog/compare/2.5.0-M1.1...2.5.0-M2.1)

Change-Id: Ib228a03a6f031e21f8162eda0b63c68510a040a2

---
updated-dependencies:
- dependency-name: org.tinylog:tinylog-api
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Change-Id: I3cbb11fa3b94f48f06c8cd7a974b2d656a2fa21e
diff --git a/pom.xml b/pom.xml
index 1a43064..49d8ffc 100644
--- a/pom.xml
+++ b/pom.xml
@@ -128,7 +128,7 @@
     <dependency>
       <groupId>org.tinylog</groupId>
       <artifactId>tinylog-api</artifactId>
-      <version>2.5.0-M1.1</version>
+      <version>2.5.0-M2.1</version>
     </dependency>
 
     <!-- API, java.xml.bind module -->