Prep for release

CHANGES

 OpenLDAP 2.5 Change Log
 
-OpenLDAP 2.5.16 Engineering
+OpenLDAP 2.5.16 Release (2023/07/31)
 	Fixed slapd cn=config incorrect handling of paused (ITS#10045)
 	Fixed slapd-meta to account for MOD ops being optional (ITS#10067)
 	Fixed slapd-asyncmeta to account for MOD ops being optional (ITS#10067)

build/version.var

@@ -15,9 +15,9 @@
 ol_package=OpenLDAP
 ol_major=2
 ol_minor=5
-ol_patch=X
-ol_api_inc=20515
+ol_patch=16
+ol_api_inc=20516
 ol_api_current=1
-ol_api_revision=10
+ol_api_revision=11
 ol_api_age=1
-ol_release_date="2023/07/10"
+ol_release_date="2023/07/31"