Bump org.mockito:mockito-core (#447)

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

@@ -88,7 +88,7 @@
 <dependency>
     <groupId>org.mockito</groupId>
     <artifactId>mockito-core</artifactId>
-    <version>5.18.0</version>
+    <version>5.19.0</version>
 </dependency>
 
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