github: support build URL when writing summary

Signed-off-by: CrazyMax <1951866+crazy-max@users.noreply.github.com>

src/types/github.ts

@@ -59,6 +59,7 @@ export interface UploadArtifactResponse {
 export interface BuildSummaryOpts {
   exportRes: ExportResponse;
   uploadRes?: UploadArtifactResponse;
+  buildURL?: string;
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
   inputs?: any;
   bakeDefinition?: BakeDefinition;