Sync sdam spec tests (#813)

This brings the tests up-to-date with mongodb/specifications@b07c26dc.

Author: alcaeus

src/libmongoc/tests/json/server_discovery_and_monitoring/errors/error_handling_handshake.json

@@ -9,6 +9,7 @@
           "a:27017",
           {
             "ok": 1,
+            "helloOk": true,
             "isWritablePrimary": true,
             "hosts": [
               "a:27017"

src/libmongoc/tests/json/server_discovery_and_monitoring/errors/non-stale-network-error.json

@@ -9,6 +9,7 @@
           "a:27017",
           {
             "ok": 1,
+            "helloOk": true,
             "isWritablePrimary": true,
             "hosts": [
               "a:27017"

src/libmongoc/tests/json/server_discovery_and_monitoring/errors/non-stale-network-timeout-error.json

@@ -9,6 +9,7 @@
           "a:27017",
           {
             "ok": 1,
+            "helloOk": true,
             "isWritablePrimary": true,
             "hosts": [
               "a:27017"

src/libmongoc/tests/json/server_discovery_and_monitoring/errors/non-stale-topologyVersion-greater-InterruptedAtShutdown.json

@@ -9,6 +9,7 @@
           "a:27017",
           {
             "ok": 1,
+            "helloOk": true,
             "isWritablePrimary": true,
             "hosts": [
               "a:27017"

src/libmongoc/tests/json/server_discovery_and_monitoring/errors/non-stale-topologyVersion-greater-InterruptedDueToReplStateChange.json

@@ -9,6 +9,7 @@
           "a:27017",
           {
             "ok": 1,
+            "helloOk": true,
             "isWritablePrimary": true,
             "hosts": [
               "a:27017"

src/libmongoc/tests/json/server_discovery_and_monitoring/errors/non-stale-topologyVersion-greater-LegacyNotPrimary.json

@@ -9,6 +9,7 @@
           "a:27017",
           {
             "ok": 1,
+            "helloOk": true,
             "isWritablePrimary": true,
             "hosts": [
               "a:27017"

src/libmongoc/tests/json/server_discovery_and_monitoring/errors/non-stale-topologyVersion-greater-NotMaster.json

@@ -9,6 +9,7 @@
           "a:27017",
           {
             "ok": 1,
+            "helloOk": true,
             "isWritablePrimary": true,
             "hosts": [
               "a:27017"