Bump slf4jVersion from 1.7.29 to 1.7.31 (#54)

Bumps `slf4jVersion` from 1.7.29 to 1.7.31.

Updates `slf4j-api` from 1.7.29 to 1.7.31
- [Release notes](https://github.com/qos-ch/slf4j/releases)
- [Commits](https://github.com/qos-ch/slf4j/commits)

Updates `slf4j-simple` from 1.7.29 to 1.7.31
- [Release notes](https://github.com/qos-ch/slf4j/releases)
- [Commits](https://github.com/qos-ch/slf4j/commits)

Updates `jcl-over-slf4j` from 1.7.29 to 1.7.31
- [Release notes](https://github.com/qos-ch/slf4j/releases)
- [Commits](https://github.com/qos-ch/slf4j/commits)

---
updated-dependencies:
- dependency-name: org.slf4j:slf4j-api
  dependency-type: direct:development
  update-type: version-update:semver-patch
- dependency-name: org.slf4j:slf4j-simple
  dependency-type: direct:development
  update-type: version-update:semver-patch
- dependency-name: org.slf4j:jcl-over-slf4j
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
diff --git a/pom.xml b/pom.xml
index 3bbf069..837cce9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -204,7 +204,7 @@
     <plexusVersion>1.5.4</plexusVersion>
     <scmVersion>1.4</scmVersion>
     <wagonVersion>3.3.1</wagonVersion>
-    <slf4jVersion>1.7.29</slf4jVersion>
+    <slf4jVersion>1.7.31</slf4jVersion>
     <!-- for ITs -->
     <checkstylePluginVersion>2.9.1</checkstylePluginVersion>
     <javadocPluginVersion>3.2.0</javadocPluginVersion>