20230703.0.0

Changes

🚀 Features

• Feature: Add CRON_UID and CRON_GID environment variables and remove CRON_USER environment variable @leojonathanoh (#21)
• Feature: Add 3.17 variants @leojonathanoh (#14)
• Feature: Add 3.15 variants @leojonathanoh (#13)
• Enhancement: Remove unneeded output and error functions in docker-entrypoint.sh @leojonathanoh (#20)
• Enhancement: Remove unneeded /cronscripts volume @leojonathanoh (#18)
• Enhancement: Remove setting permissions on files in unneeded /cronscripts directory in docker-entrypoint.sh @leojonathanoh (#17)

🖊️ Refactors

• Refactor: Simplify creation of crontab @leojonathanoh (#19)

📝 Documentation

• Docs (readme): Update description of CRON environment variable @leojonathanoh (#22)

🧰 Maintenance

• Chore: Remove unneeded older variants @leojonathanoh (#15)
• Chore (ci): Remove unneeded .gitlab-ci.yml template @leojonathanoh (#12)