Update KubernetesLogTaskTest.java

Deleted the exception 

Signed-off-by: Ajay Dwivedi <adwived@clemson.edu>

gradle-plugin/kubernetes/src/test/java/org/eclipse/jkube/gradle/plugin/task/KubernetesLogTaskTest.java

@@ -40,7 +40,7 @@ class KubernetesLogTaskTest {
  private TestKubernetesExtension extension;
 
  @BeforeEach
- void setUp() throws IOException {
+ void setUp() {
  extension = new TestKubernetesExtension();
  extension.isUseColor = false;
  when(taskEnvironment.project.getExtensions().getByType(KubernetesExtension.class)).thenReturn(extension);