Update copilot-instructions.md

Author: nixel2007

.github/copilot-instructions.md

@@ -3,3 +3,9 @@
 ```sh
 dotnet msbuild Build.csproj /t:"CleanAll;MakeFDD;GatherLibrary;ComposeDistributionFolders;Test" /p:Configuration=LinuxDebug /p:NoCppCompiler=True
 ```
+
+Запуск приемочных тестов:
+
+```sh
+dotnet oscript.dll tests/testrunner.os -runAll tests
+```