Strengthen default config of vmq_http_pub

[mths1]

Remove vmq_http_pub from default listeners config
Add vmq_http_pub to require API key as a more secure default.

Proposed Changes

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Types of Changes

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• Bugfix (non-breaking change which fixes issue [Bug]: vmq_http_pub plugins apis not restricted by api key and bounded to default http listener  #2222)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
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