pjsip 2.1 (new formula)

Closes #23408.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
tomcat-native 1.1.29 (new formula)

Closes #22226.
Alias `libtcnative` for `tomcat-native`

It's called 'tomcat-native' in macpots and (BSD)ports but it's named 'libtcnative' in linux package managers.