[v9.3.x] CloudWatch: Cross-account querying support (#59389)

* add cross-account querying support

* fix tests

pkg/services/featuremgmt/registry.go

@@ -300,6 +300,11 @@ var (
 			Description: "Show the flame graph",
 			State:       FeatureStateAlpha,
 		},
+		{
+			Name:        "cloudWatchCrossAccountQuerying",
+			Description: "Use cross-account querying in CloudWatch datasource",
+			State:       FeatureStateAlpha,
+		},
 		{
 			Name:         "redshiftAsyncQueryDataSupport",
 			Description:  "Enable async query data support for Redshift",

pkg/services/featuremgmt/toggles_gen.go

@@ -219,6 +219,10 @@ const (
 	// Show the flame graph
 	FlagFlameGraph = "flameGraph"
 
+	// FlagCloudWatchCrossAccountQuerying
+	// Use cross-account querying in CloudWatch datasource
+	FlagCloudWatchCrossAccountQuerying = "cloudWatchCrossAccountQuerying"
+
 	// FlagRedshiftAsyncQueryDataSupport
 	// Enable async query data support for Redshift
 	FlagRedshiftAsyncQueryDataSupport = "redshiftAsyncQueryDataSupport"