Bump actions/upload-artifact from 5 to 6

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 5 to 6.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v5...v6)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -63,7 +63,7 @@ jobs:
         move output\mouse-click-simulator_setup.exe output\mouse-click-simulator_setup_%VERSION%.exe
 
     - name: Upload artifact
-      uses: actions/upload-artifact@v5
+      uses: actions/upload-artifact@v6
       with:
         name: installer-dotnet-${{ matrix.dotnet }}
         path: output\*.exe
@@ -86,7 +86,7 @@ jobs:
         "C:\Program Files\7-Zip\7z.exe" a -r mouse-click-simulator_%VERSION%.zip mouse-click-simulator-%VERSION%
 
     - name: Upload zipped updater
-      uses: actions/upload-artifact@v5
+      uses: actions/upload-artifact@v6
       with:
         name: mouse-click-simulator-zipped-${{ matrix.dotnet }}
         if-no-files-found: error