.goreleaser.yml: set commit_author info for homebrew config

Change-Id: I1019a36b9e2c52dd8b4036ecb18cfae79eaac275
Reviewed-on: https://cue-review.googlesource.com/c/cue/+/2540
Reviewed-by: Marcel van Lohuizen <mpvl@golang.org>
diff --git a/.goreleaser.yml b/.goreleaser.yml
index cff0c42..15fb67a 100644
--- a/.goreleaser.yml
+++ b/.goreleaser.yml
@@ -57,8 +57,11 @@
 
 brews:
 - github:
-    owner: cuelang 
+    owner: cuelang
     name: homebrew-tap
+  commit_author:
+    name: cue-bot
+    email: noreply@cuelang.org
   homepage: "https://github.com/cuelang/cue"
   description: "CUE is an open source data constraint language which aims to simplify tasks involving defining and using data."
   test: |