Fix clippy by eliding lifetimes

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 62.50000% with 6 lines in your changes missing coverage. Please review.

Project coverage is 88%. Comparing base (021fe31) to head (3eab0ea). Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
flowr/src/lib/debugger.rs	60%	6 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #2312 +/- ## ====================================== Coverage 88% 88% ====================================== Files 151 151 Lines 18653 18653 ====================================== Hits 16274 16274 Misses 2379 2379 ``` | [Flag](https://app.codecov.io/gh/andrewdavidmackenzie/flow/pull/2312/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Andrew+Mackenzie) | Coverage Δ | | |---|---|---| | [](https://app.codecov.io/gh/andrewdavidmackenzie/flow/pull/2312/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Andrew+Mackenzie) | `?` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Andrew+Mackenzie#carryforward-flags-in-the-pull-request-comment) to find out more.

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