Bump phoenix from 1.4.11 to 1.4.12

[dependabot-preview[bot]]

Bumps phoenix from 1.4.11 to 1.4.12.

Changelog

Sourced from phoenix's changelog.

1.4.12 (2020-01-22)

Enhancements

• [Generator] Add --no-gettext flag to phx.new task
• [Generator] Allow a custom migration module to be given to the migration generator
• [Controller] Allow filename encoding to be disabled in send_download/3
• [Channel] Allow using a keyword list/map for socket assigns
• [Endpoint] Support Websocket subprotocols
• [Endpoint] Allow cache manifest to be loaded from specified application
• [Endpoint] Allow disabling logger via application configuration
• [ConnTest] Allow passing a custom set of headers to copy when recycling a connection

Bug Fixes

• [Channel] Fix error handling when joining a channel using LongPoll
• [Controller] Fix blame in Phoenix.ActionClauseError
• [Router] Escape plug options in Router helpers

JavaScript Client Enhancements

• Teardown connection on unload instead of beforeunload to support cancellable unloads by userland scripts

Commits

• b027882 Release 1.4.12
• 719750e Bump changelog
• ac5c2a7 Bump changelog
• 65db024 Bump changelog
• f7bd43d Sync js assets
• 3af5a22 Allow the app configuration to specify a custom migration module for the gene...
• e503181 Support :disposition option in send_download/3 (#3364)
• 739c625 Teardown on unload instead of beforeunload to allow cancelled unloads
• b19c1fd Bump cow1 deps
• bd930fa Revert "Raise semantic error on bad URI decoding"
• Additional commits viewable in compare view

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