rabbitmq-c: update to 0.14.0

[barracuda156]

Description

Update

Type(s)

• bugfix
• enhancement
• security fix

Tested on

macOS 10.6
Xcode 3.2

Verification

Have you

• followed our Commit Message Guidelines?
• squashed and minimized your commits?
• checked that there aren't other open pull requests for the same change?
• referenced existing tickets on Trac with full URL in commit message?
• checked your Portfile with port lint --nitpick?
• tried existing tests with sudo port test?
• tried a full install with sudo port -vst install?
• tested basic functionality of all binary files?
• checked that the Portfile's most important variants haven't been broken?

[macportsbot]

Notifying maintainers:
@ryandesign for port rabbitmq-c.

[ryandesign]

The reason why I had not updated the port to 0.12.0 or 0.13.0 was alanxz/rabbitmq-c#758. We will want to verify that the issue has been solved correctly before merging this PR.

[barracuda156]

@ryandesign Got it, converted this to draft for now.