fix checkstyle

Author: jaydeluca

instrumentation/kubernetes-client-7.0/javaagent/src/test/java/io/opentelemetry/javaagent/instrumentation/kubernetesclient/KubernetesClientTest.java

@@ -7,6 +7,7 @@
 
 import static io.opentelemetry.api.common.AttributeKey.stringKey;
 import static io.opentelemetry.instrumentation.testing.util.TelemetryDataUtil.orderByRootSpanName;
+import static io.opentelemetry.sdk.testing.assertj.OpenTelemetryAssertions.assertThat;
 import static io.opentelemetry.sdk.testing.assertj.OpenTelemetryAssertions.equalTo;
 import static io.opentelemetry.semconv.ErrorAttributes.ERROR_TYPE;
 import static io.opentelemetry.semconv.HttpAttributes.HTTP_REQUEST_METHOD;
@@ -24,7 +25,6 @@
 import io.opentelemetry.api.trace.SpanKind;
 import io.opentelemetry.instrumentation.testing.junit.AgentInstrumentationExtension;
 import io.opentelemetry.instrumentation.testing.junit.InstrumentationExtension;
-import io.opentelemetry.sdk.testing.assertj.OpenTelemetryAssertions;
 import io.opentelemetry.sdk.trace.data.StatusData;
 import io.opentelemetry.testing.internal.armeria.common.HttpResponse;
 import io.opentelemetry.testing.internal.armeria.common.HttpStatus;
@@ -112,7 +112,7 @@ void synchronousCall() throws ApiException {
         metrics ->
             metrics.anySatisfy(
                 metric ->
-                    OpenTelemetryAssertions.assertThat(metric)
+                    assertThat(metric)
                         .hasDescription("Duration of HTTP client requests.")
                         .hasUnit("s")
                         .hasHistogramSatisfying(