Bump jackson.version from 2.9.9 to 2.12.1 in /k2-parent#14

dependabot[bot] wants to merge 1 commit intomasterkatari/k2:masterfrom

dependabot/maven/k2-parent/jackson.version-2.12.1katari/k2:dependabot/maven/k2-parent/jackson.version-2.12.1Copy head branch name to clipboard