Update Rake to the latest version
Update Rake to the latest version

Fixes railties ApplicationTests failures in Ruby 2.7.

Rake 12.3.2 includes a [Fix for test fails caused by 2.6 warnings](https://github.com/ruby/rake/pull/297). Upadting prevents failures of:

- `RakeTests::RakeMigrationsTest#test_migration_status_when_schema_migrations_table_is_not_present`
- `RakeDbsTest#test_db:structure:dump_does_not_dump_schema_information_when_no_migrations_are_used`
- `BinSetupTest#test_bin_setup_output`

See [failures log](https://gist.githubusercontent.com/utilum/30e081cc38b5d90e18be8cede6385b10/raw/2b89e568977d4f1fe010726a9a561c10e59c8df8/tests.log).

ruby 2.7.0dev (2019-04-18 trunk 67602) [x86_64-linux]

BlakeWilliams/rails,esparta/rails,shioyama/rails,Vasfed/rails,yhirano55/rails,yahonda/rails,Edouard-chin/rails,lcreid/rails,betesh/rails,schuetzm/rails,tjschuck/rails,kmcphillips/rails,bogdanvlviv/rails,eileencodes/rails,palkan/rails,iainbeeston/rails,betesh/rails,arunagw/rails,joonyou/rails,tjschuck/rails,Stellenticket/rails,yawboakye/rails,rafaelfranca/omg-rails,iainbeeston/rails,Erol/rails,yawboakye/rails,Envek/rails,jeremy/rails,BlakeWilliams/rails,betesh/rails,mechanicles/rails,schuetzm/rails,yhirano55/rails,Edouard-chin/rails,jeremy/rails,kmcphillips/rails,MSP-Greg/rails,esparta/rails,MSP-Greg/rails,Vasfed/rails,yhirano55/rails,arunagw/rails,Vasfed/rails,kddeisz/rails,georgeclaghorn/rails,starknx/rails,BlakeWilliams/rails,notapatch/rails,tjschuck/rails,shioyama/rails,rails/rails,Envek/rails,yalab/rails,bogdanvlviv/rails,tgxworld/rails,Stellenticket/rails,tgxworld/rails,esparta/rails,EmmaB/rails-1,yalab/rails,lcreid/rails,fabianoleittes/rails,esparta/rails,iainbeeston/rails,palkan/rails,repinel/rails,gauravtiwari/rails,shioyama/rails,Edouard-chin/rails,rafaelfranca/omg-rails,yahonda/rails,yawboakye/rails,fabianoleittes/rails,Erol/rails,joonyou/rails,mechanicles/rails,georgeclaghorn/rails,Erol/rails,eileencodes/rails,kddeisz/rails,BlakeWilliams/rails,vipulnsward/rails,fabianoleittes/rails,flanger001/rails,kddeisz/rails,mechanicles/rails,vipulnsward/rails,tgxworld/rails,Erol/rails,starknx/rails,notapatch/rails,gauravtiwari/rails,eileencodes/rails,Envek/rails,flanger001/rails,yahonda/rails,flanger001/rails,MSP-Greg/rails,Stellenticket/rails,fabianoleittes/rails,notapatch/rails,georgeclaghorn/rails,kddeisz/rails,Stellenticket/rails,eileencodes/rails,MSP-Greg/rails,yahonda/rails,joonyou/rails,Vasfed/rails,vipulnsward/rails,gauravtiwari/rails,flanger001/rails,rails/rails,prathamesh-sonpatki/rails,prathamesh-sonpatki/rails,bogdanvlviv/rails,repinel/rails,iainbeeston/rails,yhirano55/rails,lcreid/rails,shioyama/rails,Envek/rails,yawboakye/rails,starknx/rails,palkan/rails,prathamesh-sonpatki/rails,Edouard-chin/rails,kmcphillips/rails,lcreid/rails,arunagw/rails,schuetzm/rails,repinel/rails,vipulnsward/rails,EmmaB/rails-1,notapatch/rails,rails/rails,betesh/rails,palkan/rails,rafaelfranca/omg-rails,yalab/rails,mechanicles/rails,georgeclaghorn/rails,arunagw/rails,tgxworld/rails,jeremy/rails,rails/rails,schuetzm/rails,kmcphillips/rails,repinel/rails,joonyou/rails,jeremy/rails,EmmaB/rails-1,yalab/rails,tjschuck/rails,prathamesh-sonpatki/rails,bogdanvlviv/rails