Update Java examples to version 4.0.0

Update the minFraud Java dependency version from 1.15.0 to 4.0.0
and change Gradle from `compile` to `implementation` (the modern
Gradle syntax).

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: oschwald

content/minfraud/evaluate-a-transaction.md

@@ -66,15 +66,15 @@ Install-Package MaxMind.MinFraud
 <dependency>
   <groupId>com.maxmind.minfraud</groupId>
   <artifactId>minfraud</artifactId>
-  <version>1.15.0</version>
+  <version>4.0.0</version>
 </dependency>
 
 // Or install via Gradle
 repositories {
   mavenCentral()
 }
 dependencies {
-  compile 'com.maxmind.minfraud:minfraud:1.15.0'
+  implementation 'com.maxmind.minfraud:minfraud:4.0.0'
 }
 ```
 

content/minfraud/report-a-transaction.md

@@ -40,15 +40,15 @@ Install-Package MaxMind.MinFraud
 <dependency>
   <groupId>com.maxmind.minfraud</groupId>
   <artifactId>minfraud</artifactId>
-  <version>1.15.0</version>
+  <version>4.0.0</version>
 </dependency>
 
 // Or install via Gradle
 repositories {
   mavenCentral()
 }
 dependencies {
-  compile 'com.maxmind.minfraud:minfraud:1.15.0'
+  implementation 'com.maxmind.minfraud:minfraud:4.0.0'
 }
 ```