Add mockito dependency

weather/pom.xml

@@ -20,6 +20,13 @@
             <version>1.0-SNAPSHOT</version>
         </dependency>
 
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-core</artifactId>
+            <version>5.3.1</version>
+            <scope>test</scope>
+        </dependency>
+
         <dependency>
             <groupId>com.h2database</groupId>
             <artifactId>h2</artifactId>