remove public modifier

Signed-off-by: Jeromy Cannon <jeromy@swirldslabs.com>

fullstack-helm-client/src/test/java/com/hedera/fullstack/helm/client/test/proxy/request/chart/ChartDependencyUpdateRequestTest.java

@@ -30,7 +30,7 @@
 import org.mockito.junit.jupiter.MockitoExtension;
 
 @ExtendWith(MockitoExtension.class)
-public class ChartDependencyUpdateRequestTest {
+class ChartDependencyUpdateRequestTest {
     @Mock
     HelmExecutionBuilder helmExecutionBuilderMock;