netcoreapp runtime error fix attempt

Author: IVNSTN

.github/workflows/ci.yml

@@ -5,7 +5,7 @@ name: Build .NET lib
 
 on:
   push:
-    branches: ["main"]
+    branches: ["develop"]
   pull_request:
     branches: ["main"]
   workflow_dispatch:
@@ -69,6 +69,7 @@ jobs:
         uses: actions/setup-dotnet@v4
         with:
           dotnet-version: |
+            2.0.x
             3.1.x
             6.0.x
             8.0.x