[github-nfbot] Revert back to .NET 6 (#89)

Author: networkfusion

.github/workflows/NanoFramework-GitHubBot.yml

@@ -15,7 +15,7 @@ env:
   AZURE_FUNCTIONAPP_NAME: NanoFramework-GitHubBot
   AZURE_FUNCTIONAPP_PACKAGE_PATH: .\published
   CONFIGURATION: Release
-  DOTNET_VERSION: '8.0.x'
+  DOTNET_VERSION: '6.0.x'
   WORKING_DIRECTORY: .
   DOTNET_CORE_VERSION_INPROC: ''
 
@@ -34,7 +34,7 @@ jobs:
 
     - name: Build Azure Function
       run: |
-        dotnet build "github-nfbot/GitHub-nfbot" --configuration ${{ env.CONFIGURATION }} --property:PublishDir="${{ env.AZURE_FUNCTIONAPP_PACKAGE_PATH }}"
+        dotnet build "github-nfbot/GitHub-nfbot" --configuration ${{ env.CONFIGURATION }} --output "${{ env.AZURE_FUNCTIONAPP_PACKAGE_PATH }}"
 
     - name: Deploy to Azure Function App
       if: github.event_name == 'push' && github.ref == 'refs/heads/main'

github-nfbot/GitHub-nfbot/GitHub-nfbot.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <AzureFunctionsVersion>v4</AzureFunctionsVersion>
     <RootNamespace>GitHub_nfbot</RootNamespace>
     <UserSecretsId>eb38317d-abae-4ecf-902b-71be30f7c744</UserSecretsId>