Bump log4j-core from 2.13.3 to 2.15.0

Bumps log4j-core from 2.13.3 to 2.15.0.

---
updated-dependencies:
- dependency-name: org.apache.logging.log4j:log4j-core
  dependency-type: direct:production
...

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

Author: dependabot[bot]

pom.xml

@@ -61,7 +61,7 @@
 	  <apache.oro.version>2.0.8</apache.oro.version>
 	  <apache.opennlp.version>1.5.3</apache.opennlp.version>
 
-	  <log4j.version>2.13.3</log4j.version>
+	  <log4j.version>2.15.0</log4j.version>
 	  <slf4j.version>1.6.0</slf4j.version>
 	  <junit.version>4.13.1</junit.version>