Bump com.gradleup.shadow in /examples/fabric-contract-example-gradle

Bumps [com.gradleup.shadow](https://github.com/GradleUp/shadow) from 8.3.6 to 8.3.8.
- [Release notes](https://github.com/GradleUp/shadow/releases)
- [Commits](GradleUp/shadow@8.3.6...8.3.8)

---
updated-dependencies:
- dependency-name: com.gradleup.shadow
  dependency-version: 8.3.8
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

examples/fabric-contract-example-gradle/build.gradle

@@ -1,5 +1,5 @@
 plugins {
-    id 'com.gradleup.shadow' version '8.3.6'
+    id 'com.gradleup.shadow' version '8.3.8'
     id 'java'
 }