Bump Postgres version

Author: Konstantin Knizhnik

vendor/revisions.json

@@ -1,5 +1,5 @@
 {
-  "v16": ["16.3", "e06bebc75306b583e758b52c95946d41109239b2"],
-  "v15": ["15.7", "f54d7373eb0de5a54bce2becdb1c801026c7edff"],
+  "v16": ["16.3", "d7bad8236b4283831a4122afbafe832a753b0541"],
+  "v15": ["15.7", "71aa66d721b26eebb223f8989a8c2a71c498cb87"],
   "v14": ["14.12", "223dd925959f8124711dd3d867dc8ba6629d52c0"]
 }