Merge pull request #389 from apache/dependabot/maven/rootcause/ch.qos.logback-logback-core-1.3.15

Bump ch.qos.logback:logback-core from 1.3.12 to 1.3.15 in /rootcause

Author: paulrutter

rootcause/pom.xml

@@ -170,7 +170,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-core</artifactId>
-            <version>1.3.12</version>
+            <version>1.3.15</version>
             <scope>test</scope>
         </dependency>