fixed some lint issues

libs/core/cache/src/connection-manager.ts

@@ -7,7 +7,7 @@ interface ConnectionConfig {
   singleton?: boolean;
   db?: number;
   redisConfig: RedisConfig;
-  logger?: any;
+  logger?: unknown;
 }
 
 /**
@@ -32,7 +32,9 @@ export class RedisConnectionManager {
     
     if (singleton) {
       const existing = RedisConnectionManager.connections.get(name);
-      if (existing) return existing;
+      if (existing) {
+        return existing;
+      }
     }
 
     const connection = this.createConnection(redisConfig);