Update dependency org.slf4j:slf4j-log4j12 to v2.0.15

Author: renovate[bot]

pom.xml

@@ -230,7 +230,7 @@ software.
     <dependency>
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-log4j12</artifactId>
-      <version>2.0.9</version>
+      <version>2.0.15</version>
       <scope>runtime</scope>
     </dependency>
     <dependency>