fix: skip ML availability check if ML is disabled (immich-app#23053)

Author: bo0tzz

server/src/repositories/machine-learning.repository.ts

@@ -85,7 +85,7 @@ export class MachineLearningRepository {
       }
     }
 
-    if (!config.availabilityChecks.enabled) {
+    if (!config.enabled || !config.availabilityChecks.enabled) {
       return;
     }