fix(osmap.yaml): fix PGDG repo file creation for Amazon Linux

IevgeniiChepurniy · IevgeniiChepurniy · commit 2de775be1e3e · 2021-07-06T15:11:56.000+03:00
diff --git a/postgres/osmap.yaml b/postgres/osmap.yaml
@@ -9,3 +9,7 @@ Fedora:
     baseurl: 'https://download.postgresql.org/pub/repos/yum/{{ repo.version }}/fedora/fedora-$releasever-$basearch'
   remove:
     releases: ['9.4', '9.5', '9.6', '10']
+
+Amazon:
+  pkg_repo:
+    baseurl: 'https://download.postgresql.org/pub/repos/yum/{{ repo.version }}/redhat/rhel-7-$basearch'
