Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -33,6 +33,10 @@ build:       # This job runs in the build stage, which runs first.
     - "dotnet restore"
     - "dotnet publish -c Release --output out/ --no-restore --self-contained --runtime win-x64"
     - "zip -r ${WINDOWS_X64_BINARY} out"
+  artifacts:
+    expire_in: 7d
+    paths:
+      - ${WINDOWS_X64_BINARY}
 
 upload:
   stage: upload