configure.ac: bump to version 1.6.93 for rc2 release
diff --git a/configure.ac b/configure.ac
index 5a8e915..7ef77eb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 
 m4_define([wayland_major_version], [1])
 m4_define([wayland_minor_version], [6])
-m4_define([wayland_micro_version],  [92])
+m4_define([wayland_micro_version],  [93])
 m4_define([wayland_version],
           [wayland_major_version.wayland_minor_version.wayland_micro_version])