Change interface to match v0.53.0 (https://github.com/devcontainers/c…

…li/blob/9444540283b236298c28f397dea879e7ec222ca1/src/spec-node/collectionCommonUtils/publishCommandImpl.ts#L63)

src/contracts/collection.ts

@@ -10,7 +10,7 @@ export interface GitHubMetadata {
 }
 
 export interface PublishResult {
-    publishedVersions: string[];
+    publishedTags: string[];
     digest:            string;
     version:           string;
 }