Bump ch.qos.logback:logback-classic

Bumps the minor-and-patch group in /java/secure-memory with 1 update: [ch.qos.logback:logback-classic](https://github.com/qos-ch/logback).


Updates `ch.qos.logback:logback-classic` from 1.5.20 to 1.5.21
- [Release notes](https://github.com/qos-ch/logback/releases)
- [Commits](qos-ch/logback@v_1.5.20...v_1.5.21)

---
updated-dependencies:
- dependency-name: ch.qos.logback:logback-classic
  dependency-version: 1.5.21
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: minor-and-patch
...

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

Author: dependabot[bot]

java/secure-memory/pom.xml

@@ -41,7 +41,7 @@
     <jna.version>5.18.1</jna.version>
     <junit.jupiter.version>5.13.4</junit.jupiter.version>
     <junit.platform.version>1.9.2</junit.platform.version>
-    <logback.version>1.5.20</logback.version>
+    <logback.version>1.5.21</logback.version>
     <maven.checkstyle.version>3.6.0</maven.checkstyle.version>
     <maven.compiler.version>3.14.1</maven.compiler.version>
     <maven.gpg.version>3.2.8</maven.gpg.version>