Update actions/upload-artifact action to v4 (#45)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/Build_main_and_publish_to_nuget.yml

@@ -40,7 +40,7 @@ jobs:
           NuGetApiKey: ${{ secrets.NUGET_API_KEY }}
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       - name: 'Publish: artifacts'
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: artifacts
           path: artifacts

.github/workflows/Continuous_build.yml

@@ -39,7 +39,7 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       - name: 'Publish: artifacts'
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: artifacts
           path: artifacts

.github/workflows/Manual_publish_to_Github_Nuget.yml

@@ -36,7 +36,7 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       - name: 'Publish: artifacts'
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: artifacts
           path: artifacts