Bump rspec-rails from 3.5.1 to 3.8.2

Bumps [rspec-rails](https://github.com/rspec/rspec-rails) from 3.5.1 to 3.8.2.
- [Release notes](https://github.com/rspec/rspec-rails/releases)
- [Changelog](https://github.com/rspec/rspec-rails/blob/master/Changelog.md)
- [Commits](rspec/rspec-rails@v3.5.1...v3.8.2)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Author: dependabot-support

Gemfile

@@ -66,7 +66,7 @@ group :development, :test do
   gem "dotenv-rails"
   gem "factory_girl_rails"
   gem "pry-rails"
-  gem "rspec-rails", "~> 3.0"
+  gem "rspec-rails", "~> 3.8"
   gem "annotate"
   gem "letter_opener"
   gem "email_spec"

Gemfile.lock

@@ -655,7 +655,7 @@ GEM
     devise_invitable (1.5.5)
       actionmailer (>= 3.2.6, < 5)
       devise (>= 3.2.0)
-    diff-lcs (1.2.5)
+    diff-lcs (1.3)
     docile (1.1.5)
     dotenv (0.11.1)
       dotenv-deployment (~> 0.0.2)
@@ -797,23 +797,23 @@ GEM
     responders (2.4.0)
       actionpack (>= 4.2.0, < 5.3)
       railties (>= 4.2.0, < 5.3)
-    rspec-core (3.5.1)
-      rspec-support (~> 3.5.0)
-    rspec-expectations (3.5.0)
+    rspec-core (3.8.0)
+      rspec-support (~> 3.8.0)
+    rspec-expectations (3.8.2)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.5.0)
-    rspec-mocks (3.5.0)
+      rspec-support (~> 3.8.0)
+    rspec-mocks (3.8.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.5.0)
-    rspec-rails (3.5.1)
+      rspec-support (~> 3.8.0)
+    rspec-rails (3.8.2)
       actionpack (>= 3.0)
       activesupport (>= 3.0)
       railties (>= 3.0)
-      rspec-core (~> 3.5.0)
-      rspec-expectations (~> 3.5.0)
-      rspec-mocks (~> 3.5.0)
-      rspec-support (~> 3.5.0)
-    rspec-support (3.5.0)
+      rspec-core (~> 3.8.0)
+      rspec-expectations (~> 3.8.0)
+      rspec-mocks (~> 3.8.0)
+      rspec-support (~> 3.8.0)
+    rspec-support (3.8.0)
     ruby2ruby (2.2.0)
       ruby_parser (~> 3.1)
       sexp_processor (~> 4.0)
@@ -941,7 +941,7 @@ DEPENDENCIES
   rails_12factor
   recipient_interceptor
   redcarpet
-  rspec-rails (~> 3.0)
+  rspec-rails (~> 3.8)
   sass-rails (~> 5.0.1)
   select2-rails
   shoulda-matchers (~> 2.7.0)