mock update availability

Author: overheadhunter

src/main/java/org/cryptomator/macos/update/DmgUpdateMechanism.java

@@ -34,6 +34,15 @@ protected DownloadUpdateInfo checkForUpdate(String currentVersion, LatestVersion
 		};
 		var updateVersion = response.latestVersion().macVersion();
 		var asset = response.assets().stream().filter(a -> a.name().endsWith(suffix)).findAny().orElse(null);
+
+
+		// FIXME: remove this block! see https://github.com/cryptomator/cryptomator/issues/4058
+		if (currentVersion.startsWith("1.18.0-beta") && asset != null) {
+			return new DownloadUpdateInfo(this, updateVersion, asset);
+		}
+		// END FIXME
+		
+
 		if (UpdateMechanism.isUpdateAvailable(updateVersion, currentVersion) && asset != null) {
 			return new DownloadUpdateInfo(this, updateVersion, asset);
 		} else {