Update GH Action to use builtin VCPKG. (#77)

.github/workflows/build.yml

@@ -20,17 +20,14 @@ jobs:
         config: [Debug, Release]
     runs-on: windows-2022
     steps:
-      # https://learn.microsoft.com/en-us/vcpkg/consume/binary-caching-github-actions-cache
-      - name: Export GitHub Actions cache environment variables
-        uses: actions/github-script@v7
-        with:
-          script: |
-            core.exportVariable('ACTIONS_CACHE_URL', process.env.ACTIONS_CACHE_URL || '');
-            core.exportVariable('ACTIONS_RUNTIME_TOKEN', process.env.ACTIONS_RUNTIME_TOKEN || '');
+      # set VCPKG Root
+      - name: "Set environmental variables"
+        shell: bash
+        run: |
+          echo "VCPKG_ROOT=$VCPKG_INSTALLATION_ROOT" >> $GITHUB_ENV
 
       # checkout USVFS and vcpkg
       - uses: actions/checkout@v4
-      - uses: lukka/run-vcpkg@v11
 
       - name: Restore vcpkg cache
         uses: actions/cache/restore@v4
@@ -41,8 +38,6 @@ jobs:
 
       # configure
       - run: cmake --preset vs2022-windows-${{ matrix.arch }} -B build_${{ matrix.arch }} "-DCMAKE_INSTALL_PREFIX=install/${{ matrix.config }}"
-        env:
-          VCPKG_ROOT: ${{ github.workspace }}/vcpkg
 
       - name: Save vcpkg cache
         uses: actions/cache/save@v4
@@ -52,8 +47,6 @@ jobs:
 
       # build
       - run: cmake --build build_${{ matrix.arch }} --config ${{ matrix.config }} --target INSTALL
-        env:
-          VCPKG_ROOT: ${{ github.workspace }}/vcpkg
 
       # package install
       - uses: actions/upload-artifact@master
@@ -152,7 +145,7 @@ jobs:
         if: always()
       - run: ./test/bin/usvfs_global_test_runner_${{ matrix.arch }}.exe
         if: always()
-      - uses: actions/upload-artifact@master
+      - uses: actions/upload-artifact@v4
         if: always()
         with:
           name: tests-outputs_${{ matrix.config }}_${{ matrix.arch }}