adding dynamic fetch of token

.gitea/workflows/openapi.yml

@@ -89,13 +89,18 @@ jobs:
 
       - name: Validate OpenAPI files + show validation results
         env:
-          OPENAPI_TOKEN: ${{ secrets.OPENAPI_TOKEN }}
+          INTERNAL_OPENAPI_KEY: ${{ secrets.INTERNAL_OPENAPI_KEY }}
         run: |
           set -e
 
           MAX_ATTEMPTS=30      # ~5 minutes total (30 * 10s)
           SLEEP_SECONDS=10
 
+          # --- Fetching access token ---
+          OPENAPI_TOKEN=$(curl -X POST "https://openapi-validator.eco-preprod.tsi-dev.otc-service.com/api/token/machine" \
+              -H "X-Internal-Api-Key: $INTERNAL_OPENAPI_KEY" | jq .access_token)
+          echo "::add-mask::$OPENAPI_TOKEN"
+          
           while IFS= read -r url; do
             [ -z "$url" ] && continue