Cache Wireguard-NT for windows unit tests (#9816)

.github/workflows/test_unit.yaml

@@ -144,10 +144,25 @@ jobs:
  cache: "pip"
  - run: pip install -r requirements.txt
 
+ - name: Cache Wireguard NT
+ id: cache-wireguard-nt
+ uses: actions/cache@v4
+ with:
+ path: 3rdparty/wireguard-nt
+ key: wireguard-nt-${{ hashFiles('windows/wireguard_nt/CMakeLists.txt') }}
+
+ - name: Download Wireguard NT
+ if: steps.cache-wireguard-nt.outputs.cache-hit != 'true'
+ shell: bash
+ run: |
+ WIREGUARD_NT_URL=$(grep -Eo 'DOWNLOAD[[:space:]].*' windows/wireguard_nt/CMakeLists.txt | awk '{print $2}')
+ curl -sSL -o wireguard-nt.zip $WIREGUARD_NT_URL
+ unzip -d 3rdparty/ wireguard-nt.zip
+
  - name: Building tests
  run: |
  mkdir ./build
- cmake -S . -B ./build -GNinja -DCMAKE_BUILD_TYPE=Debug -DCMAKE_PREFIX_PATH="C:\MozillaVPNBuild\lib\cmake" -DWINTUN_FOLDER="not-existing"
+ cmake -S . -B ./build -GNinja -DCMAKE_BUILD_TYPE=Debug -DCMAKE_PREFIX_PATH="C:\MozillaVPNBuild\lib\cmake" -DWIREGUARD_FOLDER="3rdparty/wireguard-nt"
  cmake --build ./build --target build_tests
 
  - name: Running native messaging tests