Merge pull request #46 from io7m-com/dependabot/maven/develop/ch.qos.logback-logback-classic-1.5.21

Automatically merged by ghtools. Audit ID: d0a947af-3daf-4007-9f29-efa97e82f669

Author: io7m

pom.xml

@@ -115,7 +115,7 @@
       <dependency>
         <groupId>ch.qos.logback</groupId>
         <artifactId>logback-classic</artifactId>
-        <version>1.5.6</version>
+        <version>1.5.21</version>
       </dependency>
       <dependency>
         <groupId>net.sf.saxon</groupId>