chore: update sbt-header from 5.6.5 to 5.9.0#169

jona7o wants to merge 1 commit intomasterinnFactory/akka-persistence-gcp-datastore:masterfrom

update/sbt-header-5.9.0innFactory/akka-persistence-gcp-datastore:update/sbt-header-5.9.0Copy head branch name to clipboard