Bump actions/upload-artifact from 3 to 4 (#1407)

.github/workflows/ci.yml

@@ -71,7 +71,7 @@ jobs:
           cmd /c "$env:VSDevCmd" "&" msbuild /m /clp:ForceConsoleColor "$env:msbuild_config_props" cppwinrt.sln /t:cppwinrt
 
       - name: Upload built executables
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: msvc-build-${{ matrix.arch }}-${{ matrix.config }}-bin
           path: |
@@ -240,7 +240,7 @@ jobs:
 
       - name: Upload arm64 test executables
         if: matrix.arch == 'arm64'
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: msvc-tests-${{ matrix.arch }}-${{ matrix.config }}-bin
           path: |
@@ -279,7 +279,7 @@ jobs:
           cmake --build build/cross_x64/ --target install -j2
 
       - name: Upload cppwinrt.exe
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: cross-build-${{ matrix.arch }}-bin
           path: install/bin/cppwinrt.exe
@@ -396,7 +396,7 @@ jobs:
           }
 
       - name: Upload nuget package artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: package
           path: "*.nupkg"