Use ink! release version in new contract template

[davidsemakula]

Summary

Closes #_ (N/A)

• [n] y/n | Does it introduce breaking changes?
• [n] y/n | Is it dependent on the specific version of ink or pallet-contracts?

Update Cargo.toml template used by new contract command (i.e. cargo contract new <my_contract>) to use latest crates.io version for ink and ink_e2e dependencies instead of git dependencies.

Description

Update Cargo.toml template used by new contract command (i.e. cargo contract new <my_contract>) to use latest crates.io version for ink and ink_e2e dependencies instead of git dependencies.

Checklist before requesting a review

• My code follows the style guidelines of this project
• I have added an entry to CHANGELOG.md
• I have commented my code, particularly in hard-to-understand areas
• I have added tests that prove my fix is effective or that my feature works
• Any dependent changes have been merged and published in downstream modules

[cmichi]

@davidsemakula I changed the base branch to 5.x.x, the current master already contains breaking changes for 6.0.0-alpha.

Unfortunately changing the base branch messed up your whole PR 🙈 . Could you recreate it and cherry-pick the two commits?

[davidsemakula]

@cmichi gotcha, on it 🙂

[davidsemakula]

Done @cmichi