Log Message:
squid6: update to 6.9

Changes since 6.8:
	- Regression Bug 5349: basic_nis_auth build error: unterminated #ifndef
	- Bug 5069: Keep listening after getsockname() error
	- Bug 5360: FwdState::noteDestinationsEnd() assertion "err"
	- Reduce stale errno usage
	- Plug memory leak in handling cache manager requests
	- Fix error: template-id not allowed for constructor in C++20
	- Improve release packaging automation