Bump slf4j.version from 1.7.30 to 1.7.31

Bumps `slf4j.version` from 1.7.30 to 1.7.31.

Updates `jcl-over-slf4j` from 1.7.30 to 1.7.31
- [Release notes](https://github.com/qos-ch/slf4j/releases)
- [Commits](https://github.com/qos-ch/slf4j/commits)

Updates `slf4j-jdk14` from 1.7.30 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:jcl-over-slf4j
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.slf4j:slf4j-jdk14
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

pom.xml

@@ -519,7 +519,7 @@
         <maven.version>3.8.1</maven.version>
         <plexus.utils.version>3.3.0</plexus.utils.version>
         <rhino.version>1.6R7</rhino.version>
-        <slf4j.version>1.7.30</slf4j.version>
+        <slf4j.version>1.7.31</slf4j.version>
         <spring.version>5.3.8</spring.version>
         <wsdl4j.version>1.6.3</wsdl4j.version>
         <xalan.version>2.7.2</xalan.version>