ci: fix getting commit + sha
diff --git a/internal/pkg/image_repositories/manifest.go b/internal/pkg/image_repositories/manifest.go
index 45c2739..72e66aa 100644
--- a/internal/pkg/image_repositories/manifest.go
+++ b/internal/pkg/image_repositories/manifest.go
@@ -84,6 +84,6 @@
 	}
 
 	return &ReleaseManifest{
-		SHA: *branch.Commit.Commit.SHA,
+		SHA: branch.GetCommit().GetSHA(),
 	}, nil
 }