CloudWatch: Add Cloudfront Function metrics (#62990)

feat: add Cloudfront Function metrics to NamespaceMetricsMap

Signed-off-by: Conor Evans <coevans@tcd.ie>

pkg/tsdb/cloudwatch/constants/metrics.go

@@ -15,7 +15,7 @@ var NamespaceMetricsMap = map[string][]string{
 	"AWS/CertificateManager":      {"DaysToExpiry"},
 	"AWS/Chatbot":                 {"EventsThrottled", "EventsProcessed", "MessageDeliverySuccess", "MessageDeliveryFailure", "UnsupportedEvents"},
 	"AWS/ClientVPN":               {"ActiveConnectionsCount", "AuthenticationFailures", "CrlDaysToExpiry", "EgressBytes", "EgressPackets", "IngressBytes", "IngressPackets", "SelfServicePortalClientConfigurationDownloads"},
-	"AWS/CloudFront":              {"4xxErrorRate", "5xxErrorRate", "BytesDownloaded", "BytesUploaded", "Requests", "TotalErrorRate", "CacheHitRate", "OriginLatency", "401ErrorRate", "403ErrorRate", "404ErrorRate", "502ErrorRate", "503ErrorRate", "504ErrorRate", "LambdaExecutionError", "LambdaValidationError", "LambdaLimitExceededErrors"},
+	"AWS/CloudFront":              {"4xxErrorRate", "5xxErrorRate", "BytesDownloaded", "BytesUploaded", "Requests", "TotalErrorRate", "CacheHitRate", "OriginLatency", "401ErrorRate", "403ErrorRate", "404ErrorRate", "502ErrorRate", "503ErrorRate", "504ErrorRate", "LambdaExecutionError", "LambdaValidationError", "LambdaLimitExceededErrors", "FunctionInvocations", "FunctionValidationErrors", "FunctionExecutionErrors", "FunctionComputeUtilization", "FunctionThrottles"},
 	"AWS/CloudHSM":                {"HsmKeysSessionOccupied", "HsmKeysTokenOccupied", "HsmSessionCount", "HsmSslCtxsOccupied", "HsmTemperature", "HsmUnhealthy", "HsmUsersAvailable", "HsmUsersMax", "InterfaceEth2OctetsInput", "InterfaceEth2OctetsOutput"},
 	"AWS/CloudSearch":             {"IndexUtilization", "Partitions", "SearchableDocuments", "SuccessfulRequests"},
 	"AWS/CodeBuild":               {"BuildDuration", "Builds", "DownloadSourceDuration", "Duration", "FailedBuilds", "FinalizingDuration", "InstallDuration", "PostBuildDuration", "PreBuildDuration", "ProvisioningDuration", "QueuedDuration", "SubmittedDuration", "SucceededBuilds", "UploadArtifactsDuration"},