Replace .toList() with .collect()

.toList() was only introduced to android in api level 34, which is newer than
this module's min_sdk_version. Replace it with .collect().

This was found while updating android lint.

Flag: EXEMPT refactor
Bug: 394096385
Test: m lint-check with android lint update
Change-Id: I8f5a40c211b1c238f254651ae6d4d87ae9d970b6