Update Gemfile to use https

Author: cdelafuente-r7

Gemfile

@@ -3,7 +3,7 @@ source 'https://rubygems.org'
 #   spec.add_runtime_dependency '<name>', [<version requirements>]
 gemspec name: 'metasploit-framework'
 
-gem 'metasploit-credential', git: 'git@github.com:cdelafuente-r7/metasploit-credential.git', branch: 'enh/MS-9710/add_pkcs12_metadata'
+gem 'metasploit-credential', git: 'https://github.com/cdelafuente-r7/metasploit-credential', branch: 'enh/MS-9710/add_pkcs12_metadata'
 
 # separate from test as simplecov is not run on travis-ci
 group :coverage do

Gemfile.lock

@@ -1,5 +1,5 @@
 GIT
-  remote: git@github.com:cdelafuente-r7/metasploit-credential.git
+  remote: https://github.com/cdelafuente-r7/metasploit-credential
   revision: acc5a012f4bc7e7774af059e778b947cd994da1e
   branch: enh/MS-9710/add_pkcs12_metadata
   specs: