chore(absence): Add capability for absence replacement support

Signed-off-by: Marcel Müller <marcel-mueller@gmx.de>

Author: SystemKeeper

apps/dav/lib/Capabilities.php

@@ -17,7 +17,7 @@ public function __construct(
 	}
 
 	/**
-	 * @return array{dav: array{chunking: string, bulkupload?: string, absence-supported?: bool}}
+	 * @return array{dav: array{chunking: string, bulkupload?: string, absence-supported?: bool, absence-replacement?: bool}}
 	 */
 	public function getCapabilities() {
 		$capabilities = [
@@ -30,6 +30,7 @@ public function getCapabilities() {
 		}
 		if ($this->coordinator->isEnabled()) {
 			$capabilities['dav']['absence-supported'] = true;
+			$capabilities['dav']['absence-replacement'] = true;
 		}
 		return $capabilities;
 	}

apps/dav/openapi.json

@@ -40,6 +40,9 @@
                             },
                             "absence-supported": {
                                 "type": "boolean"
+                            },
+                            "absence-replacement": {
+                                "type": "boolean"
                             }
                         }
                     }