Update examples to use latest bevy

[jameshiew]

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When I tried running the examples last week they wouldn't compile due to some error with the version syn package that was being pulled in at the time, although this doesn't seem to be the case anymore. Updating the examples to bevy 0.7 and pinning dependencies at the time fixed the examples to work on my machine.

[bonsairobo]

Might as well upgrade to bevy 0.10

[jameshiew]

I tried updating the examples to bevy 0.10. Thanks for making this project!

[bonsairobo]

We're up to bevy 0.13 now.