Merge profiles: add authd socket to unix-chkpwd for authd PAM

Fixes: LP: #2120211

Signed-off-by: Ryan Lee <ryan.lee@canonical.com>

MR: https://gitlab.com/apparmor/apparmor/-/merge_requests/1775
Approved-by: John Johansen <john@jjmx.net>
Merged-by: John Johansen <john@jjmx.net>

profiles/apparmor.d/unix-chkpwd

@@ -30,6 +30,9 @@ profile unix-chkpwd /{,usr/}{,s}bin/unix_chkpwd {
   /run/host/userdb/*.user r,
   /run/host/userdb/*.user-privileged r,
 
+  # authd socket for PAM
+  @{run}/authd.sock rw,
+
   # file_inherit
   owner /dev/tty[0-9]* rw,