Update bmi.hxx to reflect addition of virtual destructor

[PhilMiller]

csdms/bmi-cxx#12
NOAA-OWP/ngen#831

Changes

• Update the bmi-cxx submodule to get the above change
• Disable LeakSanitizer in CI, following current practice across the other BMI modules

Notes

These PRs need to be merged in tandem:

• Update both BMI C++ header copies to reflect virtual destructor ngen#832
• Update bmi.hxx to reflect addition of virtual destructor #7
• Update BMI C++ header to match upstream with virtual dtor SoilMoistureProfiles#17
• Update BMI C++ header to match upstream with virtual dtor SoilFreezeThaw#25
• Update BMI C++ header to match upstream with virtual dtor and correct namespace LGAR-C#26

Checklist

• PR has an informative and human-readable title
• Changes are limited to a single goal (no scope creep)
• Code can be automatically merged (no conflicts)
• Code follows project standards (link if applicable)
• Passes all existing automated tests
• Any change in functionality is tested
• New functions are documented (with a description, list of inputs, and expected output)
• Placeholder code is flagged / future todos are captured in comments
• Visually tested in supported browsers and devices (see checklist below 👇)
• Project documentation has been updated (including the "Unreleased" section of the CHANGELOG)
• Reviewers requested with the Reviewers tool ➡️

[PhilMiller]

This should maybe also evolve to replace the internal copy solely with the referenced version from extern/bmi-cxx