what if we relax the versions?

Author: jhongturney

octocatalog-diff.gemspec

@@ -30,18 +30,18 @@ EOF
   s.add_runtime_dependency 'hashdiff', '>= 0.3.0'
   s.add_runtime_dependency 'parallel', '>= 1.12.0'
   s.add_runtime_dependency 'rugged', '>= 0.25.0b2'
-  if puppet_version == '4.10.10'
-    s.add_runtime_dependency 'puppet', '4.10.10'
-    s.add_development_dependency 'puppet', '4.10.10'
-  elsif puppet_version == '5.5.22'
-    s.add_runtime_dependency 'puppet', '5.5.22'
-    s.add_development_dependency 'puppet', '5.5.22'
-  elsif puppet_version == '6.18.0'
-    s.add_runtime_dependency 'puppet', '6.18.0'
-    s.add_development_dependency 'puppet', '6.18.0'
-  elsif puppet_version == '7.3.0'
-    s.add_runtime_dependency 'puppet', '7.3.0'
-    s.add_development_dependency 'puppet', '7.3.0'
+  if puppet_version >= '4.0.0'
+    s.add_runtime_dependency 'puppet', '>= 4.0.0', '< 5.0.0'
+    s.add_development_dependency 'puppet', '>= 4.0.0', '< 5.0.0'
+  elsif puppet_version >= '5.0.0'
+    s.add_runtime_dependency 'puppet', '>= 5.0.0', '< 6.0.0'
+    s.add_development_dependency 'puppet', '>= 5.0.0', '< 6.0.0'
+  elsif puppet_version >= '6.0.0'
+    s.add_runtime_dependency 'puppet', '>= 6.0.0', '< 7.0.0'
+    s.add_development_dependency 'puppet', '>= 6.0.0', '< 7.0.0'
+  elsif puppet_version >= '7.0.0',
+    s.add_runtime_dependency 'puppet', '>= 7.0.0', '< 8.0.0'
+    s.add_development_dependency 'puppet', '>= 7.0.0', '< 8.0.0'
   end
 
   s.add_development_dependency 'rspec', '~> 3.4.0'