packerv2: warn of hcp_packer_image depreciation

.changelog/726.txt

@@ -15,10 +15,6 @@
 Refer to the `version_fingerprint` attribute release notes for more information.
 ```
 
-```release-note:deprecation
-`data.hcp_packer_image`: This data source will be removed in a future release, and is superseded by `data.hcp_packer_artifact`
-```
-
 ```release-note:deprecation
 `data.hcp_packer_iteration`: This data source will be removed in a future release, and is superseded by `data.hcp_packer_version`
 ```

.changelog/735.txt

@@ -0,0 +1,3 @@
+```release-note:deprecation
+`data.hcp_packer_image`: This data source will be removed in a future release, and is superseded by `data.hcp_packer_artifact`
+```

internal/providersdkv2/data_source_packer_image.go

@@ -21,8 +21,9 @@ var defaultPackerTimeout = time.Minute
 
 func dataSourcePackerImage() *schema.Resource {
 	return &schema.Resource{
-		Description: "The Packer Image data source gets an image associated with an iteration, either from a specific iteration or from the iteration assigned to a given Channel.",
-		ReadContext: dataSourcePackerImageRead,
+		DeprecationMessage: "This data source has been deprecated. Use the new `hcp_packer_artifact` data source instead.",
+		Description:        "The Packer Image data source gets an image associated with an iteration, either from a specific iteration or from the iteration assigned to a given Channel.",
+		ReadContext:        dataSourcePackerImageRead,
 		Timeouts: &schema.ResourceTimeout{
 			Default: &defaultPackerTimeout,
 		},