Bump dotenv-rails from 2.7.5 to 2.7.6

Bumps [dotenv-rails](https://github.com/bkeepers/dotenv) from 2.7.5 to 2.7.6.
- [Release notes](https://github.com/bkeepers/dotenv/releases)
- [Changelog](https://github.com/bkeepers/dotenv/blob/master/Changelog.md)
- [Commits](bkeepers/dotenv@v2.7.5...v2.7.6)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

Gemfile.lock

@@ -93,10 +93,10 @@ GEM
       responders
       warden (~> 1.2.3)
     docile (1.3.2)
-    dotenv (2.7.5)
-    dotenv-rails (2.7.5)
-      dotenv (= 2.7.5)
-      railties (>= 3.2, < 6.1)
+    dotenv (2.7.6)
+    dotenv-rails (2.7.6)
+      dotenv (= 2.7.6)
+      railties (>= 3.2)
     elasticsearch (6.8.2)
       elasticsearch-api (= 6.8.2)
       elasticsearch-transport (= 6.8.2)
@@ -155,7 +155,7 @@ GEM
     multi_json (1.14.1)
     multipart-post (2.1.1)
     nio4r (2.5.2)
-    nokogiri (1.10.9)
+    nokogiri (1.10.10)
       mini_portile2 (~> 2.4.0)
     orm_adapter (0.5.0)
     parallel (1.19.2)