Bump ruby_parser to 3.11.0 for Ruby 2.5 compatibility

See https://github.com/seattlerb/ruby_parser/blob/master/History.rdoc

Gemfile.lock

@@ -767,8 +767,8 @@ GEM
     ruby-progressbar (1.9.0)
     ruby-saml (1.7.2)
       nokogiri (>= 1.5.10)
-    ruby_parser (3.9.0)
-      sexp_processor (~> 4.1)
+    ruby_parser (3.11.0)
+      sexp_processor (~> 4.9)
     rubyntlm (0.6.2)
     rubypants (0.2.0)
     rubyzip (1.2.2)
@@ -808,7 +808,7 @@ GEM
     sentry-raven (2.7.2)
       faraday (>= 0.7.6, < 1.0)
     settingslogic (2.0.9)
-    sexp_processor (4.9.0)
+    sexp_processor (4.11.0)
     sham_rack (1.3.6)
       rack
     shoulda-matchers (3.1.2)

Gemfile.rails4.lock

@@ -759,8 +759,8 @@ GEM
     ruby-progressbar (1.9.0)
     ruby-saml (1.7.2)
       nokogiri (>= 1.5.10)
-    ruby_parser (3.9.0)
-      sexp_processor (~> 4.1)
+    ruby_parser (3.11.0)
+      sexp_processor (~> 4.9)
     rubyntlm (0.6.2)
     rubypants (0.2.0)
     rubyzip (1.2.2)
@@ -800,7 +800,7 @@ GEM
     sentry-raven (2.7.2)
       faraday (>= 0.7.6, < 1.0)
     settingslogic (2.0.9)
-    sexp_processor (4.9.0)
+    sexp_processor (4.11.0)
     sham_rack (1.3.6)
       rack
     shoulda-matchers (3.1.2)