update workflow file

Author: stm7128

.github/workflows/mozc-ut.yaml

@@ -36,7 +36,7 @@ jobs:
         uses: actions/upload-artifact@v2
         with:
           name: mozcdic-ut
-          path: mozcdic-ut.txt
+          path: ./src/mozcdic-ut.txt
 
   build_windows:
     runs-on: windows-latest