test: skip memory usage tests when ASAN is enabled
Running tests with an ASAN build leads to increased memory usage, rendering the memory usage assumptions in the test invalid.
Refs: https://github.com/nodejs/node/pull/32776#issuecomment-620407014
Checklist
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make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
tests and/or benchmarks are included -
commit message follows commit guidelines