Bump slf4j.version from 1.7.30 to 1.7.32

Bumps `slf4j.version` from 1.7.30 to 1.7.32.

Updates `slf4j-api` from 1.7.30 to 1.7.32
- [Release notes](https://github.com/qos-ch/slf4j/releases)
- [Commits](https://github.com/qos-ch/slf4j/commits)

Updates `slf4j-simple` from 1.7.30 to 1.7.32
- [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:production
  update-type: version-update:semver-patch
- dependency-name: org.slf4j:slf4j-simple
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

pom.xml

@@ -56,7 +56,7 @@
   <properties>
     <javaVersion>7</javaVersion>
     <project.build.outputTimestamp>2020-10-15T00:00:05Z</project.build.outputTimestamp>
-    <slf4j.version>1.7.30</slf4j.version>
+    <slf4j.version>1.7.32</slf4j.version>
     <checkstyle.violation.ignore>None</checkstyle.violation.ignore>
   </properties>