Update the ISO keyboard screenshots.

Recently the shadowed default key character map of ISO keyboard added
several missing keys in cl/586214792. This CL updates the ISO keyboard
screenshots accordingly.

Bug: 311436322
Test: atest -c InputRoboRNGTests
Change-Id: I8b846f0dccf480dde62f7ecfa4baabc18f0a0fba
3 files changed