Use .net 8 for latest pupnet

.github/workflows/release.yml

@@ -76,20 +76,15 @@ jobs:
           echo "Using version ${{ github.event.inputs.version }}"
           echo "RELEASE_VERSION=${{ github.event.inputs.version }}" >> $GITHUB_ENV
 
-      - name: Set up .NET 6 (for PupNet)
+      - name: Set up .NET 8
         uses: actions/setup-dotnet@v3
         with:
-          dotnet-version: '6.0.x'
+          dotnet-version: '8.0.x'
 
       - name: Install PupNet
         run: |
           sudo apt-get -y install libfuse2
-          dotnet tool install --framework net6.0 -g KuiperZone.PupNet
-
-      - name: Set up .NET 8
-        uses: actions/setup-dotnet@v3
-        with:
-          dotnet-version: '8.0.x'
+          dotnet tool install -g KuiperZone.PupNet
       
       - name: PupNet Build
         env: