Update ci-dgraph-js-http.yml

Author: ryanfoxtyler

.github/workflows/ci-dgraph-js-http.yml

@@ -3,15 +3,15 @@ name: ci-dgraph-js-http-tests
 on:
   push:
     branches: 
-    - master
+    - main
   pull_request:
     types:
     - opened
     - reopened
     - synchronize
     - ready_for_review
     branches: 
-    - master
+    - main
 jobs:
   dgraph-js-http-tests:
     runs-on: ubuntu-20.04