feat: create new refresh-hydrator annotation key

Signed-off-by: daengdaengLee <gunho1020@gmail.com>

pkg/apis/application/v1alpha1/application_annotations.go

@@ -5,6 +5,9 @@ const (
 	// Might take values 'normal'/'hard'. Value 'hard' means manifest cache and target cluster state cache should be invalidated before refresh.
 	AnnotationKeyRefresh string = "argocd.argoproj.io/refresh"
 
+	// AnnotationKeyRefreshHydrator is the annotation key which indicates that app needs to be hydrated. Removed by application controller after app is hydrated.
+	AnnotationKeyRefreshHydrator string = "argocd.argoproj.io/refresh-hydrator"
+
 	// AnnotationKeyManifestGeneratePaths is an annotation that contains a list of semicolon-separated paths in the
 	// manifests repository that affects the manifest generation. Paths might be either relative or absolute. The
 	// absolute path means an absolute path within the repository and the relative path is relative to the application