Use SSL::VERSIONS to map the HTTP min_version:/max_version: (closes #497).

Author: postmodern

.rubocop.yml

@@ -141,3 +141,5 @@ Layout/IndentationConsistency:
   Exclude:
     # BUG: this seems like a bug in rubocop
     - 'lib/ronin/support/network/ssl.rb'
+    # BUG: this seems like a bug in rubocop
+    - 'lib/ronin/support/network/http.rb'

lib/ronin/support/network/http.rb

@@ -370,6 +370,14 @@ def initialize_ssl(ca_bundle:        nil,
             version = SSL::VERSIONS.fetch(version,version)
 
             @http.min_version = @http.max_version = version
+          else min_version || max_version
+            if min_version
+              @http.min_version = SSL::VERSIONS.fetch(min_version,min_version)
+            end
+
+            if max_version
+              @http.max_version = SSL::VERSIONS.fetch(max_version,max_version)
+            end
           end
 
           @http.min_version = min_version if min_version