chore: bump tap to 12.7.0, bump tape to 5.2.2
chore: bump tap to 12.7.0, bump tape to 5.2.2

This fixes several vulnerabilities in dev dependencies. While
tap 12.7.0 is not the newest available version of tap it seems
to be the most compatible one. tap 15.0.x also checks coverage
and fails, if less then 100 % is covered (which is the case).

scijs/save-pixels