Fix Workflow run Not Found page (#34459)

Related:
https://github.com/go-gitea/gitea/pull/34337#issuecomment-2863593738
https://github.com/go-gitea/gitea/pull/34337#discussion_r2086332493

routers/web/repo/actions/view.go

@@ -611,20 +611,20 @@ func getRunJobs(ctx *context_module.Context, runIndex, jobIndex int64) (*actions
 	run, err := actions_model.GetRunByIndex(ctx, ctx.Repo.Repository.ID, runIndex)
 	if err != nil {
 		if errors.Is(err, util.ErrNotExist) {
-			ctx.HTTPError(http.StatusNotFound, err.Error())
+			ctx.NotFound(nil)
 			return nil, nil
 		}
-		ctx.HTTPError(http.StatusInternalServerError, err.Error())
+		ctx.ServerError("GetRunByIndex", err)
 		return nil, nil
 	}
 	run.Repo = ctx.Repo.Repository
 	jobs, err := actions_model.GetRunJobsByRunID(ctx, run.ID)
 	if err != nil {
-		ctx.HTTPError(http.StatusInternalServerError, err.Error())
+		ctx.ServerError("GetRunJobsByRunID", err)
 		return nil, nil
 	}
 	if len(jobs) == 0 {
-		ctx.HTTPError(http.StatusNotFound)
+		ctx.NotFound(nil)
 		return nil, nil
 	}