Fix goproxy for forks (#1183)

* Add direct fallback if go proxy fails

* set GOPROXY to direct in cases where secrets re not present, or the repo is a fork

* Add missing closing fi

Author: sean-breen

.github/workflows/ci.yml

@@ -23,6 +23,17 @@ env:
   GOPROXY: "https://${{ secrets.ARTIFACTORY_USER }}:${{ secrets.ARTIFACTORY_TOKEN }}@azr.artifactory.f5net.com/artifactory/api/go/f5-nginx-go-dev"
 
 jobs:
+  set-vars:
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Set Variables
+        run: |
+          if  [[ -z ${{ secrets.ARTIFACTORY_USER }} ]] || 
+              [[ -z ${{ secrets.ARTIFACTORY_TOKEN }} ]] ||
+              ${{ github.event.pull_request.head.repo.fork }}; then
+          echo "GOPROXY=direct" >> $GITHUB_ENV
+          fi
+
   lint:
     name: Lint
     runs-on: ubuntu-22.04