Bump @formatjs/intl-relativetimeformat from 8.1.7 to 8.1.8
Bump @formatjs/intl-relativetimeformat from 8.1.7 to 8.1.8

Bumps [@formatjs/intl-relativetimeformat](https://github.com/formatjs/formatjs) from 8.1.7 to 8.1.8.
- [Release notes](https://github.com/formatjs/formatjs/releases)
- [Commits](https://github.com/formatjs/formatjs/compare/@formatjs/intl-relativetimeformat@8.1.7...@formatjs/intl-relativetimeformat@8.1.8)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
ilios/common,ilios/common