DOCS-14188: Update authentication counter patterns

Author: npentrel

source/reference/command/serverStatus.txt

@@ -2414,6 +2414,7 @@ security
 
    "security" : {
       "authentication" : {
+         "saslSupportedMechsReceived" : <num>,
          "mechanisms" : {
             "MONGODB-X509" : {
                "speculativeAuthenticate" : {
@@ -2464,6 +2465,13 @@ security
      certificate. (Only appears for :binary:`~bin.mongod` or
      :binary:`~bin.mongos` instance with support for TLS)
 
+   .. serverstatus:: security.authentication.saslSupportedMechsReceived
+
+      .. versionadded:: 5.0
+
+      The number of times a :dbcommand:`hello` request includes a valid
+      :data:`hello.saslSupportedMechs` field.
+
    .. serverstatus:: security.authentication.mechanisms
 
       A document that reports on the number of times a given

source/release-notes/5.0.txt

@@ -398,6 +398,11 @@ Cursor Metrics
   - :serverstatus:`metrics.cursor.totalOpened`, which reports the total
     number of cursors that have been opened
 
+Security Counter
+  - :serverstatus:`security.authentication.saslSupportedMechsReceived`,
+    which reports the number of times a :dbcommand:`hello` request
+    includes a valid :data:`hello.saslSupportedMechs` field.
+
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