Rebase to Alpine 3.15

Author: thespad

readme-vars.yml

@@ -59,6 +59,7 @@ app_setup_block: |
 
 # changelog
 changelogs:
+  - { date: "10.12.21:", desc: "Rebase to Alpine 3.15." }
   - { date: "26.04.21:", desc: "Added Redis database environment variables." }
   - { date: "03.02.21:", desc: "Added remote authentication environment variables." }
   - { date: "02.01.21:", desc: "Added BASE_PATH environment variable." }