Replace EasyMock dependency with Mockito and re-pin Bazel deps

java/pom.xml

diff --git a/java/pom.xml b/java/pom.xml
index e102597..e11bfe2 100644
--- a/java/pom.xml
+++ b/java/pom.xml
@@ -79,9 +79,9 @@
         <scope>test</scope>
       </dependency>
       <dependency>
-        <groupId>org.easymock</groupId>
-        <artifactId>easymock</artifactId>
-        <version>3.2</version>
+        <groupId>org.mockito</groupId>
+        <artifactId>mockito-core</artifactId>
+        <version>4.3.1</version>
         <scope>test</scope>
       </dependency>
       <dependency>