[devdocsgjs/main: 1585/1867] fix: set branch to master in deploy action

[Andy Holmes <andyholmes src gnome org>]

commit 39624c26e5a9122d7974d7e130900118a1584579
Author: Oliver Eyton-Williams <ojeytonwilliams gmail com>
Date:   Mon Mar 29 14:41:51 2021 +0200

    fix: set branch to master in deploy action

 .github/workflows/build.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 421369c6..1de9ec36 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -2,7 +2,8 @@ name: Deploy
 
 on:
   push:
-    branches: [ $default-branch ]
+    branches:
+      - master
 
 jobs:
   test: