Bump plug_cowboy from 2.0.0 to 2.3.0 in /example

[dependabot-preview[bot]]

Bumps plug_cowboy from 2.0.0 to 2.3.0.

Changelog

Sourced from plug_cowboy's changelog.

v2.3.0

PlugCowboy requires Elixir v1.7 or later.

Incompatible changes

• The telemetry events added in version v2.2.0 does not work as expected. In particular, there is no guarantee the stop and exception events will be invoked. Therefore, these events have been removed.

v2.2.2

Enhancements

• Emit telemetry event for Cowboy early errors
• Improve error messages for Cowboy early errors

v2.2.1

Enhancements

• Use proper telemetry metadata for exceptions

v2.2.0

Enhancements

• Include telemetry support

v2.1.3

Bug fixes

• Properly support the :options option before removal

v2.1.2

Bug fixes

• Properly deprecate the :timeout option before removal

v2.1.1

Enhancement

• Improve docs and simplify child spec API

v2.1.0

Enhancement

• Add Plug.Cowboy.Drainer for connection draining

... (truncated)

Commits

• 2fb3285 Release v2.3.0
• 8fd0650 Remove unused branch
• 3760ab4 Add a domain to Cowboy messages and shorten stacktraces
• 235314c Require Elixir v1.7+
• a2a8341 Update travis to match plug (#40)
• b3a9457 Remove telemetry events
• 82cce93 Speed up inform test by setting cowboy timeouts
• a691fe6 Update Plug dep
• ebb4fab Release v2.2.2
• f6c30c7 Document telemetry events (#35)
• Additional commits viewable in compare view

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[dependabot-preview[bot]]

Superseded by #218.