ZOOKEEPER-4891: Update logback to 1.3.15 to fix CVE-2024-12798.

Closes #2221

Signed-off-by: Andor Molnár <andor@apache.org>

pom.xml

@@ -551,7 +551,7 @@
 
     <!-- dependency versions -->
     <slf4j.version>2.0.13</slf4j.version>
-    <logback-version>1.3.14</logback-version>
+    <logback-version>1.3.15</logback-version>
     <audience-annotations.version>0.12.0</audience-annotations.version>
     <jmockit.version>1.48</jmockit.version>
     <junit.version>5.6.2</junit.version>