We no longer expect that we have populated CBR metrics if SBE is enabled. If the query is eligible for SBE, we will not use CBR and proceed as though the knob was set to multiplanning.

We should skip the tests for populated metrics (Sampling to be nonzero) if SBE is enabled.

Found in a patch failure: https://parsley.corp.mongodb.com/test/mongodb_mongo_master_amazon_linux2023_arm64_try_sbe_engine_noPassthrough_5_linux_enterprise_patch_d08b98adb8400496e651887cb4bc8a7d7a8e2375_697a7b10f7d8f90007720f6b_26_01_28_21_09_48/0/42d26cf2b419df31df72bb2f3a6b2bbc?shareLine=0