Use correct version gating of API 34 for the use of getMslAltitudeMeters()

[GavynHolt]

Our users were still experiencing crashes after this recent update, but on Android 13 devices only. With some research and testing, I confirmed that it was just the wrong API version gating for getting the MSL Altitude.

Confirmed now to be working without crashing on an Android 13 (API 33) device.

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[marcprux]

Thanks!