apt::source: configure repo only for current architecture

Without this setting, we tell apt to download release information for
all architectures apt knows. This includes i386 on amd64 systems.
postgresql doesn't publish i386 packages. because of that, it results
in a warning during apt update:

N: Skipping acquire of configured file 'main/binary-i386/Packages' as
repository 'https://apt.postgresql.org/pub/repos/apt jammy-pgdg
InRelease' doesn't support architecture 'i386'

This is fixed with this change.

Author: bastelfreak

manifests/repo/apt_postgresql_org.pp

@@ -15,14 +15,15 @@
     priority   => 500,
   }
   -> apt::source { 'apt.postgresql.org':
-    location => $_baseurl,
-    release  => "${facts['os']['distro']['codename']}-pgdg",
-    repos    => 'main',
-    key      => {
+    location     => $_baseurl,
+    release      => "${facts['os']['distro']['codename']}-pgdg",
+    repos        => 'main',
+    architecture =>  $facts['os']['architecture'],
+    key          => {
       id     => 'B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8',
       source => 'https://www.postgresql.org/media/keys/ACCC4CF8.asc',
     },
-    include  => {
+    include      => {
       src => false,
     },
   }