fix: Gemfile & Gemfile.lock to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-RUBY-RACK-1061917

Gemfile

@@ -45,7 +45,7 @@ gem 'doorkeeper', '~> 5.6.8'
 gem 'repost', '~> 0.3.8'
 
 gem 'lodash-rails'
-gem 'react-rails', '>= 3.0.0'
+gem 'react-rails', '>= 3.2.0'
 
 gem 'rails_lti2_provider', git: 'https://github.com/blindsidenetworks/rails_lti2_provider.git', tag: '0.1.5'
 

Gemfile.lock

@@ -146,7 +146,7 @@ GEM
       dotenv (= 2.8.1)
       railties (>= 3.2)
     erubi (1.12.0)
-    execjs (2.8.1)
+    execjs (2.9.1)
     faraday (1.10.3)
       faraday-em_http (~> 1.0)
       faraday-em_synchrony (~> 1.0)
@@ -307,7 +307,7 @@ GEM
       ffi (~> 1.0)
     rdoc (6.5.0)
       psych (>= 4.0.0)
-    react-rails (3.1.1)
+    react-rails (3.2.0)
       babel-transpiler (>= 0.7.0)
       connection_pool
       execjs
@@ -396,7 +396,7 @@ GEM
     terser (1.1.17)
       execjs (>= 0.3.0, < 3)
     thor (1.3.0)
-    tilt (2.2.0)
+    tilt (2.3.0)
     timeout (0.4.0)
     tins (1.32.1)
       sync
@@ -457,7 +457,7 @@ DEPENDENCIES
   rails (~> 6.1, >= 6.1.7.5)
   rails_lti2_provider!
   rdoc
-  react-rails (>= 3.0.0)
+  react-rails (>= 3.2.0)
   redis (~> 4.2)
   remote_syslog_logger
   repost (~> 0.3.8)
@@ -474,3 +474,6 @@ DEPENDENCIES
   tzinfo-data
   web-console (>= 4.2.1)
   webmock
+
+BUNDLED WITH
+   2.1.4