(actions) run on 20.04 for now

MatthijsBurgh · web-flow · commit 9fdfcc176e3b · 2022-12-09T18:05:27.000+01:00
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
@@ -5,7 +5,7 @@ on: [push, pull_request, workflow_dispatch]
 jobs:
   build:
     name: ${{ matrix.build_name }}
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     strategy:
       fail-fast: false
       matrix:
