fix: Fix typo in infra.awsnlb.failedClientNlbTlsHandshakes (#95)

There is one too many open paren's in the select clause.

Author: rcrocker

definitions/infra-awsnlb/golden_metrics.yml

@@ -1,7 +1,7 @@
 failedClientNlbTlsHandshakes:
   title: Failed client-NLB TLS handshakes
   query:
-    select: rate((sum(provider.clientTlsNegotiationErrorCount.Sum),1 minute)
+    select: rate(sum(provider.clientTlsNegotiationErrorCount.Sum),1 minute)
     from: LoadBalancerSample
     where: provider='Nlb'
     eventId: entityGuid
@@ -30,4 +30,4 @@ concurrentTlsFlows:
     where: provider='Nlb'
     eventId: entityGuid
     facet: entityName
-    
+