fix(ci): Reference token_url for oauth tests

Author: spbsoluble

.github/workflows/go_tests.yml

@@ -37,6 +37,7 @@ jobs:
           KEYFACTOR_AUTH_CONFIG_B64: ${{ secrets.KEYFACTOR_AUTH_CONFIG_B64 }}
           KEYFACTOR_AUTH_CLIENT_ID: ${{ secrets.KEYFACTOR_AUTH_CLIENT_ID }}
           KEYFACTOR_AUTH_CLIENT_SECRET: ${{ secrets.KEYFACTOR_AUTH_CLIENT_SECRET }}
+          KEYFACTOR_AUTH_URL: ${{ var.KEYFACTOR_AUTH_URL }}
           KEYFACTOR_HOSTNAME: ${{ vars.KEYFACTOR_HOSTNAME }}
           KEYFACTOR_AUTH_HOSTNAME: ${{ vars.KEYFACTOR_AUTH_HOSTNAME }}
           KEYFACTOR_SKIP_VERIFY: ${{ vars.KEYFACTOR_SKIP_VERIFY }}