add missing Log.forf for ytimg

Author: Fijxu

src/invidious/yt_backend/connection_pool.cr

@@ -144,7 +144,7 @@ def get_ytimg_pool(subdomain)
   if pool = YTIMG_POOLS[subdomain]?
     return pool
   else
-    Log.info { "ytimg_pool: Creating a new HTTP pool for \"https://#{subdomain}.ytimg.com\"" }
+    Log.forf.info { "Creating a new HTTP pool for \"https://#{subdomain}.ytimg.com\"" }
     pool = YoutubeConnectionPool.new(URI.parse("https://#{subdomain}.ytimg.com"), capacity: CONFIG.pool_size)
     YTIMG_POOLS[subdomain] = pool