Revert "TO-DROP: debug with upterm"

This reverts commit b596164.

Author: dscho

.github/workflows/main.yml

@@ -27,7 +27,6 @@ jobs:
       matrix:
         arch: [x64]
     steps:
-    - uses: owenthereal/action-upterm/detached@v1
     - uses: actions/checkout@v7
     - uses: git-for-windows/setup-git-for-windows-sdk@v2
     - name: initialize vcpkg