Bump NLog from 4.6.5 to 4.6.6 in /src/NLog.Web (#446)
Bump NLog from 4.6.5 to 4.6.6 in /src/NLog.Web (#446)

Bumps [NLog](https://github.com/NLog/NLog) from 4.6.5 to 4.6.6.
- [Release notes](https://github.com/NLog/NLog/releases)
- [Changelog](https://github.com/NLog/NLog/blob/dev/CHANGELOG.md)
- [Commits](https://github.com/NLog/NLog/compare/v4.6.5...v4.6.6)

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