bump jpegtran-bin to 6.0.0

[Michael Cramer]

pls bump version of jpegtran-bin to 6.0.0

see imagemin/jpegtran-bin#101

[Erik van der Bas]

Hi @sindresorhus, would you mind taking this update in consideration and release a patched version of imagemin-jpegtran? Thank you for your time in advance!

[Sébastien Fournier]

👍
It would be great if any manager of this project could upgrade this dependency?

[Timmy Willison]

upgrading jpegtran-bin to 6-7+ would also fix the security vulnerability.