feat: build single binary app with GLIBC 2.31, older versions won't be supported anymore

Author: fyhertz

.github/workflows/cicd.yml

@@ -7,7 +7,7 @@ jobs:
   test_and_build:
     runs-on: ubuntu-latest
     container:
-      image: wakemeops/ubuntu:18.04
+      image: wakemeops/ubuntu:20.04
     steps:
       - name: Install Poetry, Python 3.11 and other dependencies
         uses: upciti/wakemeops-action@v1