Update the Steam release procedure (#607)

* Only checkout the Support/steam directory

* Replace j2cli with jinjanator (j2cli doesn't work in python 3.12 and is abandoned)

.github/workflows/build.yml

@@ -741,6 +741,8 @@ jobs:
  uses: actions/checkout@v4
  with:
  fetch-depth: 0
+ sparse-checkout: |
+ Support/steam
  lfs: true # We don't use LFS, but it adds no time, and leave it here in case we do at some point later
  - name: Setup steamcmd
  uses: CyberAndrii/setup-steamcmd@v1.1.5
@@ -756,10 +758,10 @@ jobs:
  path: build_windows_openxr
  - name: Upload Build
  run: |
- pip install -U j2cli
- j2 Support/steam/app.vdf.j2 > build_windows_openxr/app.vdf
- j2 Support/steam/main_depot.vdf.j2 > build_windows_openxr/main_depot.vdf
- j2 Support/steam/installscript_win.vdf.j2 > build_windows_openxr/installscript_win.vdf
+ pip install -U jinjanator
+ jinjanate Support/steam/app.vdf.j2 > build_windows_openxr/app.vdf
+ jinjanate Support/steam/main_depot.vdf.j2 > build_windows_openxr/main_depot.vdf
+ jinjanate Support/steam/installscript_win.vdf.j2 > build_windows_openxr/installscript_win.vdf
  steamcmd +login $STEAM_USERNAME +run_app_build $(pwd)/build_windows_openxr/app.vdf +quit
  env:
  STEAM_USERNAME: ${{ secrets.STEAM_USERNAME }}