chore: move cache purging debug log to avoid logging when no tags are to be purged

Author: pieh

src/run/handlers/cache.cts

@@ -424,8 +424,6 @@ export class NetlifyCacheHandler implements CacheHandlerForMultipleVersions {
           // encode here to deal with non ASCII characters in the key
           const tag = `_N_T_${key === '/index' ? '/' : encodeURI(key)}`
 
-          getLogger().debug(`Purging CDN cache for: [${tag}]`)
-
           purgeEdgeCache(tag)
         }
       }

src/run/handlers/tags-handler.cts

@@ -91,6 +91,8 @@ export function purgeEdgeCache(tagOrTags: string | string[]): void {
     return
   }
 
+  getLogger().debug(`[NextRuntime] Purging CDN cache for: [${tags}.join(', ')]`)
+
   const purgeCachePromise = purgeCache({ tags, userAgent: purgeCacheUserAgent }).catch((error) => {
     // TODO: add reporting here
     getLogger()