compile: try reverting to .net 5.x

Author: JonnyOThan

.github/actions/compile/action.yml

@@ -52,7 +52,7 @@ runs:
     - name: Setup .NET
       uses: actions/setup-dotnet@v4
       with:
-        dotnet-version: 7.x
+        dotnet-version: 5.x
 
     - name: Install Dependencies
       shell: bash