Bump ch.qos.logback:logback-classic

Bumps the java group with 1 update in the /examples/fabric-contract-example-maven directory: [ch.qos.logback:logback-classic](https://github.com/qos-ch/logback).


Updates `ch.qos.logback:logback-classic` from 1.5.27 to 1.5.28
- [Release notes](https://github.com/qos-ch/logback/releases)
- [Commits](qos-ch/logback@v_1.5.27...v_1.5.28)

---
updated-dependencies:
- dependency-name: ch.qos.logback:logback-classic
  dependency-version: 1.5.28
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: java
...

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

Author: dependabot[bot]

examples/fabric-contract-example-maven/pom.xml

@@ -15,7 +15,7 @@
 		<fabric-chaincode-java.version>2.5.8</fabric-chaincode-java.version>
 
 		<!-- Logging -->
-		<logback.version>1.5.27</logback.version>
+		<logback.version>1.5.28</logback.version>
 		<slf4j.version>2.0.17</slf4j.version>
 
 	</properties>