fix: skip docs/npm workflows on forks (#4875)

Co-authored-by: Asher <ash@coder.com>

.github/workflows/ci.yaml

@@ -184,6 +184,9 @@ jobs:
     # This environment "npm" requires someone from
     # coder/code-server-reviewers to approve the PR before this job runs.
     environment: npm
+    # Only run if PR comes from base repo
+    # Reason: forks cannot access secrets and this will always fail
+    if: github.event.pull_request.head.repo.full_name == github.repository
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2

.github/workflows/docs-preview.yaml

@@ -22,6 +22,9 @@ jobs:
     name: Docs preview
     runs-on: ubuntu-20.04
     environment: CI
+    # Only run if PR comes from base repo
+    # Reason: forks cannot access secrets and this will always fail
+    if: github.event.pull_request.head.repo.full_name == github.repository
     steps:
       - name: Cancel Previous Runs
         uses: styfle/cancel-workflow-action@0.9.1