Dashboards: Add Dashboard Schema validation (2) (#103844)

* Activate schema validation and align underlying systems

* update to save as v0 if not the right schema version

* Resolve merge conflicts

* Move RequireApiErrorStatus to tests package

* Add mutation tests

* Fix lint

* Only do min version check if dashboard is v1

* Fix lint and disable provisioning test

* Revert provisioning changes

* Revert more tests and add schema test

* Reran gen

* SQL Dashboard save

* Adjust APIVERSION

* Fixed mutation test

* Add logging on downgrade

---------

Co-authored-by: Marco de Abreu <18629099+marcoabreu@users.noreply.github.com>
Co-authored-by: Stephanie Hingtgen <stephanie.hingtgen@grafana.com>

devenv/dev-dashboards/panel-text/text-options.json

@@ -169,7 +169,7 @@
       "type": "text"
     }
   ],
-  "refresh": false,
+  "refresh": "",
   "schemaVersion": 37,
   "tags": [],
   "templating": {