Lock file maintenance Python dependencies

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change	Age	Adoption	Passing	Confidence
		lockFileMaintenance	All locks refreshed
cosl	charm-libs	patch	0.0.13 -> 0.0.15
cosl	dependencies	patch	^0.0.13 -> ^0.0.15

🔧 This Pull Request updates lock files to use the latest dependency versions.

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 71.66%. Comparing base (7d7ab7a) to head (3ca6e49).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #352 +/- ## ======================================= Coverage 71.66% 71.66% ======================================= Files 8 8 Lines 1274 1274 Branches 242 242 ======================================= Hits 913 913 Misses 275 275 Partials 86 86 ```

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