fix dotenv-rails version

Gemfile

@@ -23,7 +23,7 @@ gem 'turbo-rails'
 # Use Redis adapter to run Action Cable in production
 gem 'redis', '~> 4.2.5'
 # Autoload dotenv in Rails
-gem 'dotenv-rails'
+gem 'dotenv-rails', '~> 2.7.6'
 # Use Active Model has_secure_password
 gem 'bcrypt', '~> 3.1.7'
 # Flexible authentication solution for Rails with Warden

Gemfile.lock

@@ -397,7 +397,7 @@ DEPENDENCIES
   capybara (>= 3.26)
   database_cleaner
   devise (~> 4.7.3)
-  dotenv-rails
+  dotenv-rails (~> 2.7.6)
   listen (~> 3.3)
   lograge (~> 0.11.2)
   mobility (~> 1.1.1)