wip test pr workflow

fix main branch reference

Author: jpartlow

.github/workflows/pr_testing.yaml

@@ -4,10 +4,10 @@ name: 'PR Tests'
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
     branches:
-      - master
+      - main
 
 jobs:
   shellcheck:
@@ -37,4 +37,4 @@ jobs:
       - name: Run openvox-agent install task
         run: bolt task run openvox_bootstrap::install --targets localhost
       - name: Verify openvox-agent is installed
-        run: puppet --version
+        run: test -n $(puppet --version)