(MODULES-4842) Update puppet compatibility with 4.7 as lower bound

The Puppet Agent support is deprecated on many of the versions suggested in the
metadata.  This commit updates the lower bound of the dependency to puppet agent
4.7.0.

Author: glennsarti

.sync.yml

@@ -9,10 +9,6 @@ Rakefile:
   unmanaged: true
 spec/spec_helper.rb:
   unmanaged: true
-appveyor.yml:
-  matrix_extras:
-    - PUPPET_GEM_VERSION: 4.2.3
-      RUBY_VER: 21-x64
 LICENSE:
   license_type: 'puppetpe'
 NOTICE:

appveyor.yml

@@ -18,10 +18,6 @@ environment:
     RUBY_VER: 23
   - PUPPET_GEM_VERSION: ~> 4.0
     RUBY_VER: 23-x64
-  - PUPPET_GEM_VERSION: 4.2.3
-    RUBY_VER: 21-x64
-  - PUPPET_GEM_VERSION: 4.2.3
-    RUBY_VER: 21-x64
 matrix:
   fast_finish: true
 install:

metadata.json

@@ -29,7 +29,7 @@
   "requirements": [
     {
       "name": "puppet",
-      "version_requirement": ">=3.7.0 < 5.0.0"
+      "version_requirement": ">=4.7.0 < 5.0.0"
     }
   ],
   "dependencies": [