Update vpnprofilestore_test to legacykeystore_test in TEST_MAPPING am: 47e0a92988 am: c769d3270d am: 8c7b8009c7 am: d1f21a518d

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/which/+/1756550

Change-Id: I7337415f9aadcef8931570ef698d3158c0a2d08b