Add simple script to build bot and update CI image

.gitlab-ci.yml

@@ -1,4 +1,4 @@
-image: openjdk:17-jdk-slim
+image: eclipse-temurin:17-jdk-alpine
 
 variables:
   MAVEN_CLI_OPTS: "-s .m2/settings.xml --batch-mode"

build-bot.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+git fetch || exit 1
+git pull || exit 1
+
+sudo docker compose down || exit 1
+sudo docker compose pull || exit 1
+sudo docker compose build || exit 1
+
+sudo docker compose up -d
+sudo docker compose logs -f