Fix tests for new Ruby version

Something changed since the Ruby version we're now testing with, so
update the specs to match.

Author: tombruijn

spec/integrations/devise_spec.rb

@@ -15,15 +15,15 @@ def prepare_request_params(params)
   end
 
   def create_user
-    post "/users", prepare_request_params(
+    post "/users", **prepare_request_params(
       "user[email]" => "person@example.com",
       "user[password]" => "secret",
       "user[password_confirmation]" => "secret"
     )
   end
 
   def sign_in
-    post "/users/sign_in", prepare_request_params(
+    post "/users/sign_in", **prepare_request_params(
       "user[email]" => "person@example.com",
       "user[password]" => "secret",
       "user[password_confirmation]" => "secret"

spec/support/apps/rails_6.0_app/config/database.yml

@@ -10,16 +10,22 @@ default: &default
   timeout: 5000
 
 development:
-  <<: *default
+  adapter: sqlite3
+  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
+  timeout: 5000
   database: db/development.sqlite3
 
 # Warning: The database defined as "test" will be erased and
 # re-generated from your development database when you run "rake".
 # Do not set this db to the same as development or production.
 test:
-  <<: *default
+  adapter: sqlite3
+  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
+  timeout: 5000
   database: db/test.sqlite3
 
 production:
-  <<: *default
+  adapter: sqlite3
+  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
+  timeout: 5000
   database: db/production.sqlite3