Use VERSION_GREATER_EQUAL in cmake logic

[scpeters]

🦟 Bug fix

Small improvement to cmake logic

Summary

While updating cmake logic as part of https://github.com/gazebosim/gz-cmake/issues/350, I noticed a version comparison using STRGREATER when VERSION_GREATER_EQUAL looks more appropriate to me, since the feature was added in cmake 3.22.

cc @traversaro who added this in https://github.com/gazebosim/gz-sim/pull/1764

Checklist

• [X] Signed all commits for DCO
• [ ] Added tests
• [ ] Updated documentation (as needed)
• [ ] Updated migration guide (as needed)
• [ ] Consider updating Python bindings (if the library has them)
• [ ] codecheck passed (See contributing)
• [ ] All tests passed (See test coverage)
• [ ] While waiting for a review on your PR, please help review another open pull request to support the maintainers

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[traversaro]

cc @traversaro who added this in #1764

Thanks for noticing! Yes, I guess ~I was just using something old out of habit.~ actually that was required at the time as we supporting also older versions of CMake.

[traversaro]

Yes, I guess ~I was just using something old out of habit.~ actually that was required at the time as we supporting also older versions of CMake.

Actually not, that operator is available since CMake 3.7: https://cmake.org/cmake/help/v3.10/command/if.html , so it was perfectly fine to use it also back then.