Update vpnprofilestore_test to legacykeystore_test in TEST_MAPPING am: 60f48fe0ae am: 09789a3c8d

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/regex-syntax/+/1755991

Change-Id: I9367d04369e946c6df2fcf8d5d5cfb3569f27fdf