build: bump version to 0.89.0.

Author: Christian Hergert

configure.ac

@@ -3,8 +3,8 @@ dnl Versioning Macros
 dnl **************************************************************************
 
 m4_define([mongoc_major_version], [0])
-m4_define([mongoc_minor_version], [1])
-m4_define([mongoc_micro_version], [3])
+m4_define([mongoc_minor_version], [89])
+m4_define([mongoc_micro_version], [0])
 m4_define([mongoc_version], [mongoc_major_version.mongoc_minor_version.mongoc_micro_version])
 
 # bump up by 1 for every micro release with no API changes, otherwise