Make zmq check for post 4.3.1 not to include 4.3.1

[j-rivero]

🦟 Bug fix

Summary

When building Debian packages for Debian/Buster I needed to use this patch to fix compilation. Seems like we were including the 4.3.1 to define the IGN_ZMQ_POST_4_3_1 variable, which clearly seems to be a mistake.

Checklist

• Signed all commits for DCO

Note to maintainers: Remember to use Squash-Merge

[codecov]

Codecov Report

Merging #237 (e993d68) into ign-transport10 (222d4d6) will not change coverage.
The diff coverage is n/a.

❗ Current head e993d68 differs from pull request most recent head bcf8485. Consider uploading reports for the commit bcf8485 to get more accurate results

@@               Coverage Diff                @@
##           ign-transport10     #237   +/-   ##
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  Coverage            89.07%   89.07%           
================================================
  Files                   49       49           
  Lines                 4678     4678           
================================================
  Hits                  4167     4167           
  Misses                 511      511           

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[caguero]

CC @mjcarroll . I remember he created a PR to fix a problem in Debian because the version of the code they had didn't make a lot of sense. Just double checking...

[mjcarroll]

Here was the original context: #157 and the original fix: #159

[chapulina]

Thanks for the context, @mjcarroll . The original issue was failing the Focal build, but this PR passes on Focal. So I think there's no regression here.

[osrf-triage]

This pull request has been mentioned on Gazebo Community. There might be relevant details there:

https://community.gazebosim.org/t/new-ignition-releases-2022-01-10/1228/1

[osrf-triage]

This pull request has been mentioned on Gazebo Community. There might be relevant details there:

https://community.gazebosim.org/t/new-ignition-releases-2022-03-25-fortress-edifice-citadel/1343/1