demo: wasi: fixed path

demo/wasienv/dom/WasiDomTest1.lpi

@@ -52,7 +52,7 @@
     </Target>
     <SearchPaths>
       <IncludeFiles Value="$(ProjOutDir)"/>
-      <OtherUnitFiles Value="../../../packages/job"/>
+      <OtherUnitFiles Value="../../../packages/job/src"/>
       <UnitOutputDirectory Value="lib/$(TargetCPU)-$(TargetOS)"/>
     </SearchPaths>
     <CodeGeneration>