Updated Mockito to 5.20.0

Author: andy-miles

pom.xml

@@ -116,7 +116,7 @@
         <jacoco.plugin.version>0.8.13</jacoco.plugin.version>
         <lombok.version>1.18.42</lombok.version>
         <maven.javadoc.plugin.version>3.11.3</maven.javadoc.plugin.version>
-        <mockito.version>5.19.0</mockito.version>
+        <mockito.version>5.20.0</mockito.version>
         <slf4j.version>2.0.16</slf4j.version>
         <okhttp.version>5.1.0</okhttp.version>
     </properties>