Increased workflow action versions

Author: synercoder

.github/workflows/dotnet-core.yml

@@ -45,7 +45,7 @@ jobs:
         run: dotnet pack -v normal -c Release --no-restore --include-symbols --include-source -p:SymbolPackageFormat=snupkg -p:PackageVersion=1.0.0-pre+$GITHUB_RUN_ID src/$PROJECT_NAME/$PROJECT_NAME.*proj
       - name: Upload Artifact
         if: matrix.os == 'ubuntu-latest'
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: nupkg
           path: ./artifacts/pkg/Release/${{ env.PROJECT_NAME }}.*.nupkg
@@ -55,7 +55,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Download Artifact
-        uses: actions/download-artifact@v1
+        uses: actions/download-artifact@v4
         with:
           name: nupkg
       - name: Push to GitHub Feed