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-deb.yml

@@ -30,7 +30,7 @@ jobs:
       run: bash cpr/package-build/build-package.sh cpr
 
     - name: "Upload deb-packages"
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: artifact-deb
         path: ./*.deb

.github/workflows/build-nuget.yml

@@ -104,7 +104,7 @@ jobs:
         COMMIT_HASH: ${{ github.sha }}
       run: nuget pack ${{github.workspace}}\nuget\libcpr.nuspec -OutputDirectory ${{github.workspace}} -Properties "VERSION=$ENV:VERSION;COMMIT_HASH=$ENV:COMMIT_HASH"
     - name: "Upload artifact"
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: artifact-nuget
         path: ${{github.workspace}}\*.nupkg