Bump joda-time from 2.10.6 to 2.10.8 in /core
Bump joda-time from 2.10.6 to 2.10.8 in /core

Bumps [joda-time](https://github.com/JodaOrg/joda-time) from 2.10.6 to 2.10.8.
- [Release notes](https://github.com/JodaOrg/joda-time/releases)
- [Changelog](https://github.com/JodaOrg/joda-time/blob/master/RELEASE-NOTES.txt)
- [Commits](https://github.com/JodaOrg/joda-time/compare/v2.10.6...v2.10.8)

Signed-off-by: dependabot[bot] <support@github.com>

Closes #119

Change-Id: I282a68b0afbeceaac97bb6dd4deeb93f3315cec4

KorAP/Kustvakt,KorAP/Kustvakt,KorAP/Kustvakt,KorAP/Kustvakt