update osm2pgsql (new libosmium)

diff --git a/osm2pgsql b/osm2pgsql
index d0af11f267a202c7c1961c2061d121c726d8db3a..06a37319125079250cb0406ae0f8018f35301ccc 160000 (submodule)
--- a/osm2pgsql
+++ b/osm2pgsql
@@ -1 +1 @@
-Subproject commit d0af11f267a202c7c1961c2061d121c726d8db3a
+Subproject commit 06a37319125079250cb0406ae0f8018f35301ccc