Fix Error: EMFILE: too many open files when upload artifacts

Pin to `v4.3.5` as a temporary workaround

actions/upload-artifact#485

```
Error: EMFILE: too many open files, open 'D:\a\FEBuilderGBA\FEBuilderGBA\FEBuilderGBA\bin\Debug\config\patch2\FE8J\skill_2018_06_01\0x0ED4.txt'
```

https://github.com/laqieer/FEBuilderGBA/actions/runs/10682416285/job/29608206679#step:6:26

.github/workflows/msbuild.yml

@@ -44,7 +44,7 @@ jobs:
     - name: Store build timestamp
       run: echo "build_time=$(date +'%Y%m%d.%H')" >> "$GITHUB_ENV"
 
-    - uses: actions/upload-artifact@v4
+    - uses: actions/upload-artifact@v4.3.5
       with:
         name: ${{ github.event.repository.name }}_${{ env.build_time }}
         path: |