Ci: Fix nightly workflow (#1250)

Fixes b2e137d.

Author: staszczuk

.github/workflows/nightly-tests.yml

@@ -124,6 +124,13 @@ jobs:
     env:
       PYTEST_RETRIES: '3'
     steps:
+      - name: Replace secrets in example config files
+        run: |
+          sed -i "s+MTL_PATH_PLACEHOLDER+${{ secrets.BARE_METAL_MTL_PATH }}+" tests/validation/configs/test_config.yaml
+          sed -i "s/IP_ADDRESS_PLACEHOLDER/${{ secrets.BARE_METAL_IP_ADDRESS }}/" tests/validation/configs/topology_config.yaml
+          sed -i "s/SSH_PORT_PLACEHOLDER/${{ secrets.BARE_METAL_SSH_PORT }}/" tests/validation/configs/topology_config.yaml
+          sed -i "s/USERNAME_PLACEHOLDER/${{ secrets.BARE_METAL_USERNAME }}/" tests/validation/configs/topology_config.yaml
+          sed -i "s+KEY_PATH_PLACEHOLDER+${{ secrets.BARE_METAL_SSH_KEY_PATH }}+" tests/validation/configs/topology_config.yaml
       - name: 'preparation: Harden Runner'
         uses: step-security/harden-runner@6c439dc8bdf85cadbbce9ed30d1c7b959517bc49 # v2.12.2
         with:
@@ -159,4 +166,4 @@ jobs:
         with:
           name: nightly-tests-report
           path: |
-            report.html
+            report.html