Use NuGet to cache vcpkg packages in GitHub Actions

See https://learn.microsoft.com/en-us/vcpkg/consume/binary-caching-github-packages

Related to #1189

Author: jlskuz

.github/workflows/build-windows-msvc.yml

@@ -2,9 +2,14 @@ name: build-test-windows-msvc-on-push
 
 on: [push, pull_request]
 
+permissions:
+  packages: write
+
 jobs:
   build-cmake-msvc:
     runs-on: windows-latest
+    env:
+      VCPKG_BINARY_SOURCES: "clear;nuget,https://nuget.pkg.github.com/mltframework/index.json,readwrite"
     steps:
       - uses: actions/checkout@v4
 
@@ -13,6 +18,24 @@ jobs:
         with:
           vcpkgJsonGlob: 'vcpkg.json'
 
+      - name: Add NuGet sources
+        shell: pwsh
+        env:
+          USERNAME: mltframework
+          VCPKG_EXE: ${{ env.VCPKG_ROOT }}/vcpkg
+          FEED_URL: https://nuget.pkg.github.com/mltframework/index.json
+        run: |
+            .$(${{ env.VCPKG_EXE }} fetch nuget) `
+            sources add `
+            -Source "${{ env.FEED_URL }}" `
+            -StorePasswordInClearText `
+            -Name GitHubPackages `
+            -UserName "${{ env.USERNAME }}" `
+            -Password "${{ secrets.GITHUB_TOKEN }}"
+            .$(${{ env.VCPKG_EXE }} fetch nuget) `
+            setapikey "${{ secrets.GITHUB_TOKEN }}" `
+            -Source "${{ env.FEED_URL }}"
+
       - name: Setup MSVC
         uses: ilammy/msvc-dev-cmd@v1