Bump io.github.classgraph:classgraph in /fabric-chaincode-shim

Bumps [io.github.classgraph:classgraph](https://github.com/classgraph/classgraph) from 4.8.179 to 4.8.181.
- [Release notes](https://github.com/classgraph/classgraph/releases)
- [Commits](classgraph/classgraph@classgraph-4.8.179...classgraph-4.8.181)

---
updated-dependencies:
- dependency-name: io.github.classgraph:classgraph
  dependency-version: 4.8.181
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

fabric-chaincode-shim/build.gradle

@@ -42,7 +42,7 @@ dependencies {
     implementation 'org.hyperledger.fabric:fabric-protos:0.3.7'
     implementation 'org.bouncycastle:bcpkix-jdk18on:1.81'
     implementation 'org.bouncycastle:bcprov-jdk18on:1.81'
-    implementation 'io.github.classgraph:classgraph:4.8.179'
+    implementation 'io.github.classgraph:classgraph:4.8.181'
     implementation 'com.github.erosb:everit-json-schema:1.14.6'
     implementation 'org.json:json:20250517'
     implementation 'com.google.protobuf:protobuf-java-util'