Fixed a flaky test in `S3DataSegmentPusherConfigTest#testSerializatio…

…n` by changing string to key:value pair (apache#15207)

* Fix capacity response in mm-less ingestion (apache#14888)

Changes:
- Fix capacity response in mm-less ingestion.
- Add field usedClusterCapacity to the GET /totalWorkerCapacity response.
This API should be used to get the total ingestion capacity on the overlord.
- Remove method `isK8sTaskRunner` from interface `TaskRunner`

* Using Map to perform comparison

* Minor Change

---------

Co-authored-by: George Shiqi Wu <george.wu@imply.io>

extensions-core/s3-extensions/src/test/java/org/apache/druid/storage/s3/S3DataSegmentPusherConfigTest.java

@@ -43,7 +43,9 @@ public void testSerialization() throws IOException
                         + "\"disableAcl\":false,\"maxListingLength\":2000,\"useS3aSchema\":false}";
 
     S3DataSegmentPusherConfig config = JSON_MAPPER.readValue(jsonConfig, S3DataSegmentPusherConfig.class);
-    Assert.assertEquals(jsonConfig, JSON_MAPPER.writeValueAsString(config));
+    Map<String, String> expected = JSON_MAPPER.readValue(jsonConfig, Map.class);
+    Map<String, String> actual = JSON_MAPPER.readValue(JSON_MAPPER.writeValueAsString(config), Map.class);
+    Assert.assertEquals(expected, actual);
   }
 
   @Test