repo/apt_postgresql_org: use modern APT keyrings

This makes use of puppetlabs/puppetlabs-apt#1128
to store the public key in /etc/apt/keyrings and add a signed-by
option to the sources.list.d entry.

Author: kenyon

manifests/repo/apt_postgresql_org.pp

@@ -22,7 +22,7 @@
     repos        => 'main',
     architecture => $facts['os']['architecture'],
     key          => {
-      id     => 'B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8',
+      name   => 'apt.postgresql.org.asc',
       source => 'https://www.postgresql.org/media/keys/ACCC4CF8.asc',
     },
     include      => {

metadata.json

@@ -14,7 +14,7 @@
     },
     {
       "name": "puppetlabs/apt",
-      "version_requirement": ">= 2.0.0 < 10.0.0"
+      "version_requirement": ">= 9.2.0 < 10.0.0"
     },
     {
       "name": "puppet/systemd",