Bump the java group across 1 directory with 2 updates

Bumps the java group with 2 updates in the /examples/fabric-contract-example-maven directory: [org.junit:junit-bom](https://github.com/junit-team/junit-framework) and [ch.qos.logback:logback-classic](https://github.com/qos-ch/logback).


Updates `org.junit:junit-bom` from 6.0.0 to 6.0.1
- [Release notes](https://github.com/junit-team/junit-framework/releases)
- [Commits](junit-team/junit-framework@r6.0.0...r6.0.1)

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: org.junit:junit-bom
  dependency-version: 6.0.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: java
- dependency-name: ch.qos.logback:logback-classic
  dependency-version: 1.5.21
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: java
...

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

Author: dependabot[bot]

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

@@ -15,7 +15,7 @@
 		<fabric-chaincode-java.version>2.5.7</fabric-chaincode-java.version>
 
 		<!-- Logging -->
-		<logback.version>1.5.20</logback.version>
+		<logback.version>1.5.21</logback.version>
 		<slf4j.version>2.0.17</slf4j.version>
 
 	</properties>
@@ -32,7 +32,7 @@
             <dependency>
                 <groupId>org.junit</groupId>
                 <artifactId>junit-bom</artifactId>
-                <version>6.0.0</version>
+                <version>6.0.1</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>