Rebump end-to-end tests to work via git submodules

This provides a more up-to-date experience, while also allowing to test
more cases. Moreover, the latest flags from 'xa65' are being used.

All in all, both 'code.nes' and 'aoc2023.nes' appear to be working after
the latest fixes.

Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>

1 files changed, 0 insertions, 0 deletions

diff --git a/tests/code.nes b/tests/code.nes
new file mode 160000
+Subproject cdf9137af1d600c27bf0750615027859c9c2415