factorio: bump to 1.0.0

Change-Id: I24c96e556ae4054fb1b25e671341f2cb671010c2
diff --git a/third_party/factorio/factorio.bzl b/third_party/factorio/factorio.bzl
index 8083cae..6686392 100644
--- a/third_party/factorio/factorio.bzl
+++ b/third_party/factorio/factorio.bzl
@@ -24,6 +24,7 @@
     "0.18.17": "42adce9fddde393023afb0aae19dd030a32ca0810191c0e7b9b7c55556e9bbce",
     "0.18.22": "d90e349b61182c1e48bd34797faedc2f9b5b4e349d218ef3d987ae9d90762f7f",
     "0.18.40": "696fe660fea945f38d12d49cf0b4737522d061fab5b3afd59467c4b2e375711a",
+    "1.0.0": "81d9e1aa94435aeec4131c8869fa6e9331726bea1ea31db750b65ba42dbd1464",
 }
 
 def factorio_repository(version, sha256):