Changelog v23.06.2

4a72621e Set release date for 23.06.2.
c869db90 northd: check if parent_name is set for tag_request 0
4281178a ofctrl: Prevent conjunction duplication
f18bbbbc ofctrl: Do not try to program long flows
6de90ba4 northd: Always ct commit ECMP symmetric traffic in the original direction.
059d1337 Use correct nw_ttl=255 to match against legit NAs
18b9ca06 checkpatch: Ignore yml files when checking line lengths.
04cf3fd8 northd: Make sure that skip_snat=true is evaluated before force_snat
c215b523 Prepare for 23.06.2.