Bump log4j-api from 2.15.0 to 2.16.0

Bumps log4j-api from 2.15.0 to 2.16.0.

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

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

pom.xml

@@ -42,7 +42,7 @@
 		<maxmem>512M</maxmem>
 		<mmtf.version>1.0.10</mmtf.version>
 		<slf4j.version>1.7.30</slf4j.version>
-		<log4j.version>2.15.0</log4j.version>
+		<log4j.version>2.16.0</log4j.version>
 		<junit-jupiter.version>5.7.2</junit-jupiter.version>
 		<ciftools.artifact>ciftools-java-jdk8</ciftools.artifact>
 		<ciftools.version>3.0.0</ciftools.version>