Merge pull request #88 from sclorg/fix_ubuntu_retirement

Switch ubuntu-20.04 -> ubuntu-latest

Author: phracek

.github/workflows/build-and-push.yml

@@ -6,7 +6,7 @@ on:
 
 jobs:
   build-and-push:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
         with: