Bump ch.qos.logback:logback-classic in /hello-world-maven

Bumps [ch.qos.logback:logback-classic](https://github.com/qos-ch/logback) from 1.2.3 to 1.3.12.
- [Commits](qos-ch/logback@v_1.2.3...v_1.3.12)

---
updated-dependencies:
- dependency-name: ch.qos.logback:logback-classic
  dependency-type: direct:production
...

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

hello-world-maven/pom.xml

@@ -27,7 +27,7 @@
     <slf4j-api.version>1.7.26</slf4j-api.version>
     <spring.version>5.2.2.RELEASE</spring.version>
     <junit-jupiter.version>5.5.2</junit-jupiter.version>
-    <logback-classic.version>1.2.3</logback-classic.version>
+    <logback-classic.version>1.3.12</logback-classic.version>
 
     <maven-shade-plugin.version>3.2.1</maven-shade-plugin.version>
     <maven-assembly-plugin.version>3.2.0</maven-assembly-plugin.version>