Update http4s-dsl to 0.23.20 in series/0.23#255

http4s-steward[bot] wants to merge 1 commit intoseries/0.23http4s/http4s-tomcat:series/0.23from

update/series/0.23/http4s-dsl-0.23.20http4s/http4s-tomcat:update/series/0.23/http4s-dsl-0.23.20Copy head branch name to clipboard