packaging: disable python3 support accepted/tizen_devbase_tools accepted/tools_devbase_tools accepted/tools_devbase_tools_legacy devel devel_psk_20160727 master release-20160315 release-20160411 release-20160531 release-20160615 release-20160930 release-20161231 spin-release-latest accepted/tizen/devbase/tools/20190927.045001 accepted/tools/devbase/tools/20250527.103815 accepted/tools/devbase/tools/20250528.062251 accepted/tools/devbase/tools/legacy/20240422.110905 accepted/tools/devbase/tools/legacy/20240423.040739 accepted/tools/devbase/tools/legacy/20240424.050720 accepted/tools/devbase/tools/legacy/20250527.042536 submit/trunk/20190927.012842 submit/trunk/20191017.111201 submit/trunk/20191017.233826 submit/trunk/20191030.112603 submit/trunk/20191101.102136