Bump dotenv-rails from 2.5.0 to 2.6.0 (#9803)

Bumps [dotenv-rails](https://github.com/bkeepers/dotenv) from 2.5.0 to 2.6.0.
- [Release notes](https://github.com/bkeepers/dotenv/releases)
- [Changelog](https://github.com/bkeepers/dotenv/blob/master/Changelog.md)
- [Commits](https://github.com/bkeepers/dotenv/commits)

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

Gemfile

@@ -13,7 +13,7 @@ gem 'hamlit-rails', '~> 0.2'
 gem 'pg', '~> 1.1'
 gem 'makara', '~> 0.4'
 gem 'pghero', '~> 2.2'
-gem 'dotenv-rails', '~> 2.5'
+gem 'dotenv-rails', '~> 2.6'
 
 gem 'aws-sdk-s3', '~> 1.30', require: false
 gem 'fog-core', '<= 2.1.0'

Gemfile.lock

@@ -185,9 +185,9 @@ GEM
       unf (>= 0.0.5, < 1.0.0)
     doorkeeper (5.0.2)
       railties (>= 4.2)
-    dotenv (2.5.0)
-    dotenv-rails (2.5.0)
-      dotenv (= 2.5.0)
+    dotenv (2.6.0)
+    dotenv-rails (2.6.0)
+      dotenv (= 2.6.0)
       railties (>= 3.2, < 6.0)
     elasticsearch (6.0.2)
       elasticsearch-api (= 6.0.2)
@@ -200,7 +200,7 @@ GEM
       multi_json
     encryptor (3.0.0)
     equatable (0.5.0)
-    erubi (1.7.1)
+    erubi (1.8.0)
     et-orbi (1.1.6)
       tzinfo
     excon (0.62.0)
@@ -269,7 +269,7 @@ GEM
     httplog (1.2.0)
       rack (>= 1.0)
       rainbow (>= 2.0.0)
-    i18n (1.1.1)
+    i18n (1.5.2)
       concurrent-ruby (~> 1.0)
     i18n-tasks (0.9.28)
       activesupport (>= 4.0.2)
@@ -467,7 +467,7 @@ GEM
       rake (>= 0.8.7)
       thor (>= 0.19.0, < 2.0)
     rainbow (3.0.0)
-    rake (12.3.1)
+    rake (12.3.2)
     rb-fsevent (0.10.3)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
@@ -678,7 +678,7 @@ DEPENDENCIES
   devise-two-factor (~> 3.0)
   devise_pam_authenticatable2 (~> 9.2)
   doorkeeper (~> 5.0)
-  dotenv-rails (~> 2.5)
+  dotenv-rails (~> 2.6)
   fabrication (~> 2.20)
   faker (~> 1.9)
   fast_blank (~> 1.0)