Fix NuGet version format and artifact path in CI

Updated dotnet pack to use a period in pre-release versioning for NuGet compatibility. Changed artifact upload path to ./artifacts-linux to match output directory on Ubuntu.

Author: synercoder

.github/workflows/dotnet-core.yml

@@ -42,13 +42,13 @@ jobs:
         run: dotnet test -c Release
       - name: Pack
         if: matrix.os == 'ubuntu-latest'
-        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/$PROJECT_NAME.*proj
+        run: dotnet pack -v normal -c Release --no-restore --include-symbols --include-source -p:SymbolPackageFormat=snupkg -p:PackageVersion=1.0.0-pre.$GITHUB_RUN_ID src/$PROJECT_NAME/$PROJECT_NAME.*proj
       - name: Upload Artifact
         if: matrix.os == 'ubuntu-latest'
         uses: actions/upload-artifact@v4
         with:
           name: nupkg
-          path: ./artifacts/pkg/Release/${{ env.PROJECT_NAME }}.*.nupkg
+          path: ./artifacts-linux/pkg/Release/${{ env.PROJECT_NAME }}.*.nupkg
   prerelease:
     needs: build
     if: github.ref == 'refs/heads/develop'