[.github/workflows/github-actions.yml] Add libarchive-dev to ubuntu; configure dir better on Windows

Author: SamuelMarks

.github/workflows/github-actions.yml

@@ -26,7 +26,7 @@ jobs:
         if: matrix.os == 'macos-latest'
 
       - name: Install dependencies for Ubuntu
-        run: sudo apt-get install -y libcurl4-openssl-dev
+        run: sudo apt-get install -y libcurl4-openssl-dev libarchive-dev
         if: matrix.os == 'ubuntu-latest'
 
       - name: checkout vcpkg
@@ -44,7 +44,7 @@ jobs:
       - name: configure (with vcpkg on Windows)
         working-directory: ./build
         run: |
-          cmake -DCMAKE_BUILD_TYPE="Debug" -DCMAKE_TOOLCHAIN_FILE="..\vcpkg\scripts\buildsystems\vcpkg.cmake" .
+          cmake -DCMAKE_BUILD_TYPE="Debug" -DCMAKE_TOOLCHAIN_FILE="..\..\vcpkg\scripts\buildsystems\vcpkg.cmake" ..
         shell: cmd
         if: matrix.os == 'windows-latest'