⬆️ Bump log4j-core

Bumps log4j-core from 2.13.0 to 2.17.1.

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

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Author: dependabot[bot]

codes/javatool/javatool-monitor/javatool-zipkin-spring/pom.xml

@@ -16,7 +16,7 @@
     <maven.compiler.target>1.7</maven.compiler.target>
 
     <spring.version>4.3.26.RELEASE</spring.version>
-    <log4j.version>2.13.0</log4j.version>
+    <log4j.version>2.17.1</log4j.version>
     <brave.version>5.10.1</brave.version>
   </properties>