Issue #3088643 by amateescu, Gábor Hojtsy, catch, smustgrave: Mark Workspaces...

Issue #3088643 by amateescu, Gábor Hojtsy, catch, smustgrave: Mark Workspaces as a stable core module

core/MAINTAINERS.txt

@@ -441,6 +441,8 @@ Views
 Workflows
 - Sam Becker 'Sam152' https://www.drupal.org/u/sam152
 
+Workspaces
+- Andrei Mateescu 'amateescu' https://www.drupal.org/u/amateescu
 
 Topic maintainers
 -----------------

core/modules/workspaces/workspaces.info.yml

@@ -2,8 +2,7 @@ name: Workspaces
 type: module
 description: 'Allows users to stage content or preview a full site by using multiple workspaces on a single site.'
 version: VERSION
-package: Core (Experimental)
-lifecycle: experimental
+package: Core
 configure: entity.workspace.collection
 dependencies:
   - drupal:user

core/tests/Drupal/KernelTests/Core/Theme/Stable9LibraryOverrideTest.php

@@ -28,6 +28,10 @@ class Stable9LibraryOverrideTest extends StableLibraryOverrideTestBase {
     'media/drupal.media-icon',
     'options/drupal.options-icon',
     'telephone/drupal.telephone-icon',
+    // This library will be changed in https://www.drupal.org/i/3096017.
+    'workspaces/drupal.workspaces.toolbar',
+    // This library will be removed in https://www.drupal.org/i/3207233.
+    'workspaces/drupal.workspaces.overview',
   ];
 
   /**