Bump ch.qos.logback:logback-core from 1.2.13 to 1.3.15

Bumps [ch.qos.logback:logback-core](https://github.com/qos-ch/logback) from 1.2.13 to 1.3.15.
- [Commits](qos-ch/logback@v_1.2.13...v_1.3.15)

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

Signed-off-by: dependabot[bot] <[email protected]>

pom.xml

@@ -55,7 +55,7 @@
     -->
     <version.aopalliance>1.0</version.aopalliance>
     <version.ch.qos.cal10n>0.8.1</version.ch.qos.cal10n>
-    <version.ch.qos.logback>1.2.13</version.ch.qos.logback>
+    <version.ch.qos.logback>1.3.15</version.ch.qos.logback>
     <version.commons-beanutils>1.9.4</version.commons-beanutils>
     <version.commons-cli>1.4</version.commons-cli>
     <version.commons-codec>1.15</version.commons-codec>