ign -> gz : Fix Python bindings

[methylDragon]

Part of: gazebo-tooling/release-tools#698

This should fix these failures:

    File "/github/workspace/python/test/testFixture_TEST.py", line 19, in <module>
      from gz.sim import TestFixture, World, world_entity
  ImportError: dynamic module does not define module export function (PyInit_sim)

But I'm explicitly using CI to test if my changes worked.. so.. Draft for now!

Signed-off-by: methylDragon [email protected]

[codecov]

Codecov Report

Merging #1606 (8f1a5aa) into main (a3cbd8c) will decrease coverage by 0.09%.
The diff coverage is 99.25%.

@@            Coverage Diff             @@
##             main    #1606      +/-   ##
==========================================
- Coverage   63.62%   63.53%   -0.10%     
==========================================
  Files         330      330              
  Lines       25787    25912     +125     
==========================================
+ Hits        16408    16462      +54     
- Misses       9379     9450      +71     

Impacted Files	Coverage Δ
include/gz/sim/EventManager.hh	79.16% <ø> (ø)
include/gz/sim/Util.hh	100.00% <ø> (ø)
include/gz/sim/components/Serialization.hh	95.55% <ø> (ø)
include/gz/sim/components/Factory.hh	97.53% <80.00%> (-1.18%)	⬇️
include/gz/sim/EntityComponentManager.hh	100.00% <100.00%> (ø)
include/gz/sim/Link.hh	100.00% <100.00%> (ø)
include/gz/sim/Model.hh	100.00% <100.00%> (ø)
include/gz/sim/SdfEntityCreator.hh	100.00% <100.00%> (ø)
include/gz/sim/Server.hh	100.00% <100.00%> (ø)
include/gz/sim/ServerConfig.hh	100.00% <100.00%> (ø)
... and 123 more

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