[backport -> release/3.5.x] fix(plugins/acme): fix certificate renew failure issue

[team-gateway-bot]

Automated backport to release/3.5.x, triggered by a label in #12773.

Original description

Summary

Fix ACME renewal bug.

Using client.renew_certificate directly as the callback function in ngx_timer_at causes the parameter value to not be the plugin's config.

Checklist

• The Pull Request has tests
• A changelog file has been created under changelog/unreleased/kong or skip-changelog label added on PR if changelog is unnecessary. README.md
• There is a user-facing docs PR against https://github.com/Kong/docs.konghq.com - PUT DOCS PR HERE

Issue reference

KAG-4008
Fix #12442