Bump kotlin.version from 1.4.21-2 to 1.4.31 (#210)

Bumps `kotlin.version` from 1.4.21-2 to 1.4.31.

Updates `kotlin-stdlib-jdk8` from 1.4.21-2 to 1.4.31
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](https://github.com/JetBrains/kotlin/commits)

Updates `kotlin-maven-allopen` from 1.4.21-2 to 1.4.31

Updates `kotlin-maven-noarg` from 1.4.21-2 to 1.4.31

Updates `kotlin-maven-plugin` from 1.4.21-2 to 1.4.31

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

acrarium/pom.xml

@@ -20,7 +20,7 @@
         <drivers.dir>${project.basedir}/drivers</drivers.dir>
         <drivers.downloader.phase>pre-integration-test</drivers.downloader.phase>
         <docker.image.prefix>f43nd1r</docker.image.prefix>
-        <kotlin.version>1.4.21-2</kotlin.version>
+        <kotlin.version>1.4.31</kotlin.version>
         <auto-service.version>1.0-rc7</auto-service.version>
         <packaging.type>jar</packaging.type>
         <testcontainers.version>1.15.2</testcontainers.version>