Bump `omniauth-saml` to 1.7.0 to include security fixes and metadata support...

Bump `omniauth-saml` to 1.7.0 to include security fixes and metadata support for IdP auto-configuration.

Gemfile

@@ -29,7 +29,7 @@ gem 'omniauth-github',        '~> 1.1.1'
 gem 'omniauth-gitlab',        '~> 1.0.0'
 gem 'omniauth-google-oauth2', '~> 0.4.1'
 gem 'omniauth-kerberos',      '~> 0.3.0', group: :kerberos
-gem 'omniauth-saml',          '~> 1.6.0'
+gem 'omniauth-saml',          '~> 1.7.0'
 gem 'omniauth-shibboleth',    '~> 1.2.0'
 gem 'omniauth-twitter',       '~> 1.2.0'
 gem 'omniauth_crowd',         '~> 2.2.0'

Gemfile.lock

@@ -473,9 +473,9 @@ GEM
     omniauth-oauth2 (1.3.1)
       oauth2 (~> 1.0)
       omniauth (~> 1.2)
-    omniauth-saml (1.6.0)
+    omniauth-saml (1.7.0)
       omniauth (~> 1.3)
-      ruby-saml (~> 1.3)
+      ruby-saml (~> 1.4)
     omniauth-shibboleth (1.2.1)
       omniauth (>= 1.0.0)
     omniauth-twitter (1.2.1)
@@ -635,7 +635,7 @@ GEM
       crack (~> 0.4)
     ruby-prof (0.16.2)
     ruby-progressbar (1.8.1)
-    ruby-saml (1.3.0)
+    ruby-saml (1.4.1)
       nokogiri (>= 1.5.10)
     ruby_parser (3.8.2)
       sexp_processor (~> 4.1)
@@ -915,7 +915,7 @@ DEPENDENCIES
   omniauth-gitlab (~> 1.0.0)
   omniauth-google-oauth2 (~> 0.4.1)
   omniauth-kerberos (~> 0.3.0)
-  omniauth-saml (~> 1.6.0)
+  omniauth-saml (~> 1.7.0)
   omniauth-shibboleth (~> 1.2.0)
   omniauth-twitter (~> 1.2.0)
   omniauth_crowd (~> 2.2.0)