feat: update recognized logging fields (#766)

diff --git a/google/api_core/client_logging.py b/google/api_core/client_logging.py
index 02d3bf6..837e3e0 100644
--- a/google/api_core/client_logging.py
+++ b/google/api_core/client_logging.py
@@ -15,12 +15,13 @@
     "rpcName",
     "serviceName",
     "credentialsType",
-    "credentialInfo",
+    "credentialsInfo",
     "universeDomain",
     "request",
     "response",
     "metadata",
     "retryAttempt",
+    "httpResponse",
 ]  # Additional fields to be Logged.