hotfix: flaky test (#1449)

* attempt to fix flaky test

* chore: use less starving polling interval

* chore: use less exhausting polling interval

ldes-server-integration-test/src/test/java/be/vlaanderen/informatievlaanderen/ldes/server/FragmentationSteps.java

@@ -24,6 +24,7 @@
 import static org.apache.jena.rdf.model.ResourceFactory.createResource;
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.awaitility.Awaitility.await;
+import static org.awaitility.pollinterval.IterativePollInterval.iterative;
 import static org.hamcrest.core.StringContains.containsString;
 import static org.junit.jupiter.api.Assertions.*;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
@@ -60,7 +61,9 @@ private void fetchFragment(String path) throws Exception {
 
 	@And("I fetch the next fragment through the first {string}")
 	public void iFetchTheNextFragmentThroughTheFirst(String relation) {
-		await().atMost(90, TimeUnit.SECONDS)
+		await()
+				.atMost(90, TimeUnit.SECONDS)
+				.pollInterval(iterative(duration -> duration.getSeconds() < 10 ? duration.plus(1, ChronoUnit.SECONDS) : duration))
 				.untilAsserted(() -> {
 					fetchFragment(currentPath);
 					assertNotNull(currentFragment);