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

Bumps [tinylog-impl](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: I6ee23ebd1effed9ab041d74d0acf5e0c487bec0a

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

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

Change-Id: I38ef395d0cce186f71ee9b3d1eb7aecee0227d49
diff --git a/pom.xml b/pom.xml
index 5bc11df..1a43064 100644
--- a/pom.xml
+++ b/pom.xml
@@ -123,7 +123,7 @@
     <dependency>
       <groupId>org.tinylog</groupId>
       <artifactId>tinylog-impl</artifactId>
-      <version>2.5.0-M1.1</version>
+      <version>2.5.0-M2.1</version>
     </dependency>
     <dependency>
       <groupId>org.tinylog</groupId>