fix[actions]: add missing simbol

Author: Kbayero

.github/workflows/v11-used-build.yml

@@ -68,7 +68,7 @@ jobs:
           GOOS=windows GOARCH=amd64 go build -o utmstack_agent_service.exe -v .
           GOOS=windows GOARCH=arm64 go build -o utmstack_agent_service_arm64.exe -v .
 
-          if [[ {{ inputs.environment }} != "alpha" ]]; then
+          if [[ ${{ inputs.environment }} != "alpha" ]]; then
             echo "Signing Windows Agent..."
             FILES_TO_SIGN=("utmstack_agent_service.exe" "utmstack_agent_service_arm64.exe")
             for file in "${FILES_TO_SIGN[@]}"; do