wallaby only: Pin external modules

This makes sure we use specific version of external modules to avoid
any direct issues caused by changes in external modules. The current
hashes are determined based on RDO hash.

Change-Id: I758334a78e285673443622a2e825afb82c318cbe

Puppetfile_extras

@@ -3,15 +3,15 @@
 
 mod 'haproxy',
   :git => 'https://github.com/puppetlabs/puppetlabs-haproxy',
-  :ref => 'main'
+  :ref => 'a797b8ccc7441199e22f151d439e85f03f3fa6ce'
 
 mod 'etcd',
   :git => 'https://github.com/puppet-etcd/puppet-etcd',
-  :ref => 'master'
+  :ref => 'e143c2d90a1154a958576af8930e3d10e1b25e54'
 
 mod 'fdio',
   :git => 'https://git.fd.io/puppet-fdio',
-  :ref => 'master'
+  :ref => '6fd1c8e407eb57bcb42198975dd1fdb1c0de1013'
 
 # NOTE(aschultz): Pinned due to LP#1755211
 mod 'systemd',
@@ -26,7 +26,7 @@ mod 'rsyslog',
 
 mod 'ssh',
   :git => 'https://github.com/saz/puppet-ssh',
-  :ref => 'v3.0.1'
+  :ref => '6e0f430034cf349c8b613d16cf9e3a52f63183e0'
 
 # NOTE(aschultz): Pine due to LP#1800944
 mod 'snmp',
@@ -44,4 +44,4 @@ mod 'collectd',
 # NOTE(tkajinam): Pinnned due to LP#1941772
 mod 'redis',
   :git => 'https://github.com/voxpupuli/puppet-redis',
-  :ref => 'v8.0.0'
+  :ref => '547105ef0756abb82642232c09ebd3f092ed8ab6'