Update syn to 2.0

[messense]

https://github.com/dtolnay/syn/releases/tag/2.0.0

[mkroening]

@m4b, it would be wonderful to publish a release with this. :)

[m4b]

sorry for the long delay here, published in 0.11.1

[m4b]

btw @mkroening rusty hermit is a very cool project, hope it continues and you all are doing well, very exciting stuff :)

[mkroening]

sorry for the long delay here, published in 0.11.1

No worries! Thanks a lot!

btw @mkroening rusty hermit is a very cool project, hope it continues and you all are doing well, very exciting stuff :)

Thanks! You saying that really means a lot to us. Keep up the awesome work :)