CI: Build on Ubuntu 18.04 while we are Python 2 compatbile and OS version is not EOL

Kishi85 · moepman · commit ce157a5c8afb · 2021-03-23T18:43:07.000+01:00
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
@@ -3,7 +3,7 @@ name: Build (and release)
 on: [ push, pull_request ]
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
     steps:
     - uses: actions/checkout@v2
       with:
