ci: move to ubuntu-latest since we're not using netfull

Author: codito

.github/workflows/dotnet.yml

@@ -40,7 +40,7 @@ jobs:
   build:
     strategy:
       matrix:
-        os: [ubuntu-22.04, windows-latest]
+        os: [ubuntu-latest, windows-latest]
     runs-on: ${{ matrix.os }}
     needs: [version]
     env: