enable OSS CI now build is fixed (#1157)

Summary:
Pull Request resolved: #1157

enable CI now that the build and tests are fixed.

Enabling for linux only to limit noise for the teams

Reviewed By: zzl0

Differential Revision: D88010549

fbshipit-source-id: 4d5640211a18238156205900d9af976790f84899

Author: ahornby

.github/workflows/sapling-cli-getdeps_linux.yml

@@ -3,7 +3,12 @@
 name: Sapling CLI Getdeps Linux
 
 on:
-  workflow_dispatch
+  push:
+    branches:
+    - main
+  pull_request:
+    branches:
+    - main
 
 permissions:
   contents: read  #  to fetch code (actions/checkout)