Bump ruby_smb to 3.3.6

This pulls in the changes from rapid7/ruby_smb#266 which adds
SamrQueryInformationDomain support.

Gemfile

@@ -53,5 +53,3 @@ group :test do
   gem 'timecop'
 end
 
-# remove after https://github.com/rapid7/ruby_smb/pull/266 is landed
-gem 'ruby_smb', git: 'https://github.com/zeroSteiner/ruby_smb', branch: 'feat/dcerpc/samr/2'

Gemfile.lock

@@ -1,15 +1,3 @@
-GIT
-  remote: https://github.com/zeroSteiner/ruby_smb
-  revision: 7e8c8c89b71674399e16242326532e319c5db6f5
-  branch: feat/dcerpc/samr/2
-  specs:
-    ruby_smb (3.3.6)
-      bindata (= 2.4.15)
-      openssl-ccm
-      openssl-cmac
-      rubyntlm
-      windows_error (>= 0.1.4)
-
 PATH
   remote: .
   specs:
@@ -487,6 +475,12 @@ GEM
     ruby-progressbar (1.13.0)
     ruby-rc4 (0.1.5)
     ruby2_keywords (0.0.5)
+    ruby_smb (3.3.6)
+      bindata (= 2.4.15)
+      openssl-ccm
+      openssl-cmac
+      rubyntlm
+      windows_error (>= 0.1.4)
     rubyntlm (0.6.3)
     rubyzip (2.3.2)
     sawyer (0.9.2)
@@ -574,7 +568,6 @@ DEPENDENCIES
   rspec-rerun
   rubocop
   ruby-prof (= 1.4.2)
-  ruby_smb!
   simplecov (= 0.18.2)
   test-prof
   timecop