Add deprecation message for skip_delete for Project resource (#11263) (#18867)

[upstream:610b36e918094fa47b032607f69ee4418d851d71]

Signed-off-by: Modular Magician <[email protected]>

Author: modular-magician

.changelog/11263.txt

@@ -0,0 +1,3 @@
+```release-note:deprecation
+'skip_delete' is being deprecated in favor of a new field 'deletion_policy' in the next major release
+```

google/services/resourcemanager/resource_google_project.go

@@ -70,6 +70,7 @@ func ResourceGoogleProject() *schema.Resource {
 			},
 			"skip_delete": {
 				Type:        schema.TypeBool,
+				Deprecated:  `skip_delete is deprecated and will be removed in a future major release. The new release adds support for deletion_policy instead.`,
 				Optional:    true,
 				Computed:    true,
 				Description: `If true, the Terraform resource can be deleted without deleting the Project via the Google API.`,

website/docs/r/google_project.html.markdown

@@ -79,7 +79,7 @@ The following arguments are supported:
     for more details.
 
 * `skip_delete` - (Optional) If true, the Terraform resource can be deleted
-    without deleting the Project via the Google API.
+    without deleting the Project via the Google API. `skip_delete` is deprecated and will be removed in a future major release. The new release adds support for `deletion_policy` instead.
 
 * `labels` - (Optional) A set of key/value label pairs to assign to the project.
   **Note**: This field is non-authoritative, and will only manage the labels present in your configuration.