Bump actions/upload-artifact from 3 to 4

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 3 to 4.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v3...v4)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/build.yml

@@ -31,12 +31,12 @@ jobs:
       run: |
         iscc install_compiler.iss
 
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@v4
       with:
         name: qmk_toolbox.exe
         path: windows/QMK Toolbox/bin/Release/win-x64/publish/qmk_toolbox.exe
 
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@v4
       with:
         name: qmk_toolbox_install.exe
         path: windows/qmk_toolbox_install.exe
@@ -72,7 +72,7 @@ jobs:
         xcodebuild CONFIGURATION_BUILD_DIR=build
         ditto -ck --rsrc --sequesterRsrc -v --keepParent "build/QMK Toolbox.app" build/QMK.Toolbox.app.zip
 
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@v4
       with:
         name: QMK.Toolbox.app.zip
         path: macos/build/QMK.Toolbox.app.zip
@@ -85,7 +85,7 @@ jobs:
         packagesbuild -v "QMK Toolbox.pkgproj"
         mv "build/QMK Toolbox.pkg" build/QMK.Toolbox.pkg
 
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@v4
       with:
         name: QMK.Toolbox.pkg
         path: macos/build/QMK.Toolbox.pkg