fix: upgrade @loopback/boot from 7.0.9 to 7.0.12

Snyk has created this PR to upgrade @loopback/boot from 7.0.9 to 7.0.12.

See this package in npm:
@loopback/boot

See this project in Snyk:
https://app.snyk.io/org/ashishkaushik/project/dba00d8a-8774-4669-ad6a-2279d08e4399?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot