Bump ch.qos.logback:logback-classic from 1.5.20 to 1.5.21 (#110)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -20,7 +20,7 @@
     <commons-codec.version>1.19.0</commons-codec.version>
 
     <assertj.version>3.27.6</assertj.version>
-    <logback-classic.version>1.5.20</logback-classic.version>
+    <logback-classic.version>1.5.21</logback-classic.version>
 
     <git-code-format-maven-plugin.version>5.4</git-code-format-maven-plugin.version>
   </properties>