update master hashes

postgresql.yaml

@@ -7,9 +7,9 @@ data:
     module: [ MIT ]
   dependencies:
     buildrequires:
-      bootstrap: f27
+      bootstrap: master
     requires:
-      platform: f27
+      platform: master
   references:
     community: https://docs.pagure.org/modularity/
     documentation: https://github.com/modularity-modules/postgresql
@@ -30,9 +30,12 @@ data:
   filter: {}
   components:
     rpms:
+      # postgresql-10.0-3.fc28
       postgresql:
         rationale: Generated.
-        ref: f27
+        ref: 07894e0da4b994092abd0084fba982e075ccf3f3
+      # uuid-1.6.2-39.fc27
       uuid:
         rationale: Generated.
-        ref: f27
+        ref: 43c916caff937bdf8a97ded1abff3e01df4895f4
+