personal/q3k/factorio: bump

Change-Id: I2a93d24f85d7517a1e2b6247668c5ae63f4e2732
diff --git a/WORKSPACE b/WORKSPACE
index e1c4c56..9188d92 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -164,6 +164,13 @@
     downloaded_file_path = "factorio.tar.xz",
 )
 
+http_file(
+    name = "factorio-headless-0.18.12",
+    urls = ["https://factorio.com/get-download/0.18.12/headless/linux64"],
+    sha256 = "e0c6a46d66cfc02cba294a5fd34265e7e7a5168b8c8a7b16ad8dbac31470ed33",
+    downloaded_file_path = "factorio.tar.xz",
+)
+
 # Go rules
 
 http_archive(