Update vpnprofilestore_test to legacykeystore_test in TEST_MAPPING am: 8d9adfbafb am: 35c1714fa7 am: e911062af4

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/regex/+/1755970

Change-Id: I7d21358aab32e24cb0a5388eb9af325ce9db1946