chore: bumping deps

[0ngk]

close #33

This pull request updates the dependency versions for the gleam_stdlib, gleam_time, and gleeunit packages in both the main project and the kitazith_example example. The updates ensure compatibility with the latest stable releases and improve consistency across the project.

Dependency version updates:

• Updated gleam_stdlib dependency to require version >= 1.0.0 and < 2.0.0 in both gleam.toml files and manifest.toml, and set the package version to 1.0.0 in the example manifest. [1] [2] [3]
• Updated gleam_time dependency to require version >= 1.8.0 and < 2.0.0 in the main gleam.toml.
• Updated gleeunit dependency to version 1.10.0 in the example manifest.toml.