reenable caret versions instead of tilde versions

[xMAC94x]

• this commit basically reverts: https://github.com/yoanlcq/vek/commit/855bc9b6efca7cf99c27960122775c303baed2f4
• semver is the standart in rust and it could be assumed that crates follow this for their dependencies.
• especially in larger projects, having tilde dependencies increases the list of dependencies and duplicate versions.
• even though vek frequently updates those, switching to caret version (at least for most crates) should be sufficient

Hi, i haven't found the reason why vek switched to tilde back in 2017, but maybe returning back to caret version might be a good thing

[yoanlcq]

Hi,

I agree. This came from a misunderstanding on my part; Back then, I thought tilde requirements were safer, but now, re-reading the doc about dependencies, I must admit that caret requirements are probably better, for the reasons you mentioned.

Let's merge, and I'll publish a new version with these changes. Thanks for the PR!

[xMAC94x]

Thank you very much, it will keep the dependency list for our projects much cleaner :)

[yoanlcq]

Anytime! The new version, 0.11.1 is now available with these changes.