more permissive test case

PrometheusMetricReaderProviderTest createMetricReader_Default is currently only testing for ipv6 0:0:0:0:0:0:0:0 and doesn't test for any other potential return values from getAddress

Author: eamonn-kearns-ibm

exporters/prometheus/src/test/java/io/opentelemetry/exporter/prometheus/internal/PrometheusMetricReaderProviderTest.java

@@ -59,7 +59,8 @@ void createMetricReader_Default() throws IOException {
           .extracting("server", as(InstanceOfAssertFactories.type(HttpServer.class)))
           .satisfies(
               server -> {
-                assertThat(server.getAddress().getHostName()).isEqualTo("0:0:0:0:0:0:0:0");
+                assertThat(server.getAddress().getHostName())
+                  .isIn("localhost", "127.0.0.1", "kubernetes.docker.internal", "0:0:0:0:0:0:0:0", "0.0.0.0");
                 assertThat(server.getAddress().getPort()).isEqualTo(9464);
               });
       assertThat(metricReader.getMemoryMode()).isEqualTo(MemoryMode.REUSABLE_DATA);