Bump NLog.Extensions.Logging from 1.3.0 to 1.4.0 in /src/Miningcore (#559)
Bump NLog.Extensions.Logging from 1.3.0 to 1.4.0 in /src/Miningcore (#559)

Bumps [NLog.Extensions.Logging](https://github.com/NLog/NLog.Extensions.Logging) from 1.3.0 to 1.4.0.
- [Release notes](https://github.com/NLog/NLog.Extensions.Logging/releases)
- [Changelog](https://github.com/NLog/NLog.Extensions.Logging/blob/master/CHANGELOG.MD)
- [Commits](https://github.com/NLog/NLog.Extensions.Logging/commits)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
coinfoundry/miningcore,coinfoundry/miningcore,coinfoundry/miningcore,coinfoundry/miningcore