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