Bump caffeine from 2.8.5 to 2.8.6
Bump caffeine from 2.8.5 to 2.8.6

Bumps [caffeine](https://github.com/ben-manes/caffeine) from 2.8.5 to 2.8.6.
- [Release notes](https://github.com/ben-manes/caffeine/releases)
- [Commits](https://github.com/ben-manes/caffeine/compare/v2.8.5...v2.8.6)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
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