Put is_crash_ping in the payload

Author: amarziali

dd-java-agent/agent-crashtracking/src/main/java/datadog/crashtracking/CrashUploader.java

@@ -309,7 +309,7 @@ private RequestBody makeTelemetryRequestBody(@Nonnull String payload, boolean is
         if (isPing) {
           writer.name("level").value("DEBUG");
           writer.name("is_sensitive").value(false);
-          writer.name("is_crash_ping").value(true);
+          writer.name("tags").value("is_crash_ping:true");
         } else {
           writer.name("level").value("ERROR");
           writer.name("tags").value("severity:crash");

dd-java-agent/agent-crashtracking/src/test/java/datadog/crashtracking/CrashUploaderTest.java

@@ -153,7 +153,6 @@ public void testCrashPing() throws Exception {
 
     // Then
     assertEquals(url, recordedRequest.getRequestUrl());
-
     final ObjectMapper mapper = new ObjectMapper();
     final JsonNode event = mapper.readTree(recordedRequest.getBody().readUtf8());
 
@@ -164,7 +163,7 @@ public void testCrashPing() throws Exception {
     assertEquals("DEBUG", event.get("payload").get(0).get("level").asText());
 
     assertFalse(event.get("payload").get(0).get("is_sensitive").asBoolean());
-    assertTrue(event.get("payload").get(0).get("is_crash_ping").asBoolean());
+    assertTrue(event.get("payload").get(0).get("tags").asText().contains("is_crash_ping:true"));
 
     assertEquals(expected, event.get("payload").get(0).get("message").asText());
     assertCommonPayload(event);