refactor: remove custom updater (#14)

Signed-off-by: Dmitriy Safronov <zimniy@cyberbrain.pw>

Author: Dmitriy Safronov

.github/actions/get-latest-docker-tag/action.yml

@@ -36,7 +36,7 @@ jobs:
 
       - name: Read Nginx (unprivileged) version from file
         run: |
-          NGINX_VERSION=$(cat .nginx-version)
+          NGINX_VERSION=$(cat Dockerfile | grep -i 'FROM' | cut -s -d ':' -f 2-)
           echo "NGINX_VERSION=$NGINX_VERSION" >> $GITHUB_ENV
 
       # Workaround: https://github.com/docker/build-push-action/issues/461

.github/actions/get-latest-docker-tag/find_latest_tag.sh

@@ -1,5 +1,3 @@
-ARG NGINX_VERSION=mainline-alpine
-
-FROM nginxinc/nginx-unprivileged:${NGINX_VERSION}
+FROM nginxinc/nginx-unprivileged:1.27.3-alpine-slim
 
 COPY default.conf /etc/nginx/conf.d/

.github/workflows/build.yml

@@ -186,7 +186,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright [yyyy] [name of copyright owner]
+   Copyright 2025 Dmitriy Safronov
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.