Upgrade zeroize to 1.6.0 am: a7a12dcfc5 am: 2f2a496571 am: 8d0b20ba8d am: f20bd54655 Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/zeroize/+/2513819 Change-Id: I2feb5b5b394af2b4b88eefcb5f2cd083820e6ff4 Signed-off-by: Automerger Merge Worker <[email protected]>