move to ubuntu latest

Author: hkollmann

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

@@ -11,7 +11,7 @@ on:
 
 jobs:
   build-and-deploy:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-latest
     if: "!contains(github.event.head_commit.message, 'ci skip')"
     steps:
       - name: Checkout