💡 [REQUEST] - Enable timestamp on logs

### Summary

For a better operational experience, I need to enable timestamp on logging without having to edit source files runtime.

I`ve created this PR to contribute to that topic. https://github.com/google/slo-generator/pull/446

### Basic Example

Current Output:

INFO - Run finished successfully in 0.1s.

Proposed Output (when variable is activated):

04/17/2024 04:29:10 - INFO - Run finished successfully in 0.1s.

### Screenshots

_No response_

### Drawbacks

I don't see any drawbacks, since it's an optional feature.

### Unresolved questions

_No response_

### Code of Conduct

- [X] I agree to follow this project's Code of Conduct