Depend on a serializer context variable no_truncate

to decide whether to turn off the ANSI control sequence-aware
truncation, instead of needing inappropriate awareness of the details
of the view that invoked the serializer.  This will also allow us to
have views that can more flexibly turn off the truncation under other
circumstances.

awx/api/views/__init__.py

@@ -3774,6 +3774,11 @@ class JobEventDetail(RetrieveAPIView):
     model = models.JobEvent
     serializer_class = serializers.JobEventSerializer
 
+    def get_serializer_context(self):
+        context = super().get_serializer_context()
+        context.update(no_truncate=True)
+        return context
+
 
 class JobEventChildrenList(SubListAPIView):
 
@@ -4008,6 +4013,11 @@ class AdHocCommandEventDetail(RetrieveAPIView):
     model = models.AdHocCommandEvent
     serializer_class = serializers.AdHocCommandEventSerializer
 
+    def get_serializer_context(self):
+        context = super().get_serializer_context()
+        context.update(no_truncate=True)
+        return context
+
 
 class BaseAdHocCommandEventsList(SubListAPIView):