ci: update pipelines

- Always run the OSS tests
- Only run the SaaS tests on 37signals-internal PRs

Author: flavorjones

.github/workflows/ci-oss.yml

@@ -2,7 +2,6 @@ name: CI (OSS)
 
 on:
   pull_request:
-  if: github.event.pull_request.head.repo.full_name != github.repository
 
 jobs:
   test:

.github/workflows/ci-saas.yml

@@ -10,6 +10,7 @@ jobs:
     with:
       saas: false
   test_saas:
+    if: github.event.pull_request.head.repo.full_name == github.repository
     name: Test (SaaS)
     uses: ./.github/workflows/test.yml
     with: