[WIP] Dependency bump: zipkin http exporter ~=3.12 -> ~=4.25

[jkingsman]

Description

A test to see if a blind upgrade passes tests for Zipkin HTTP exporter. If this works, I'll tidy things up for a real PR but just want to check if the juice is worth the squeeze first.

Fixes #3612

Type of change

Please delete options that are not relevant.

• [X] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update

How Has This Been Tested?

Automated testing that already exists.

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• :white_check_mark: login: jkingsman-atl / name: Jack Kingsman (f54c29d4a8a443322a731e2004e10dea69ccc4de)